Sort headers using clang-tidy
[geeqie.git] / src / preferences.cc
index 078742d..8b73b6c 100644 (file)
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#include "main.h"
 #include "preferences.h"
 
+#include <config.h>
+
 #include "bar-keywords.h"
 #include "cache.h"
-//~ #include "authors.h"
-//~ #include "authors.c"
-//~ #include "translators.h"
-//~ #include "translators.c"
+#include "color-man.h"
+#include "compat.h"
+#include "debug.h"
 #include "editors.h"
 #include "filedata.h"
 #include "filefilter.h"
 #include "fullscreen.h"
-#include "image.h"
 #include "image-overlay.h"
-#include "color-man.h"
+#include "image.h"
 #include "img-view.h"
+#include "intl.h"
 #include "layout-util.h"
+#include "main-defines.h"
+#include "main.h"
 #include "metadata.h"
 #include "misc.h"
 #include "osd.h"
 #include "slideshow.h"
 #include "toolbar.h"
 #include "trash.h"
-#include "utilops.h"
 #include "ui-fileops.h"
 #include "ui-misc.h"
-#include "ui-spinner.h"
 #include "ui-tabcomp.h"
+#include "utilops.h"
 #include "window.h"
 #include "zonedetect.h"
 
 #include <gspell/gspell.h>
 #endif
 
-#define EDITOR_NAME_MAX_LENGTH 32
-#define EDITOR_COMMAND_MAX_LENGTH 1024
+enum {
+       EDITOR_NAME_MAX_LENGTH = 32,
+       EDITOR_COMMAND_MAX_LENGTH = 1024
+};
 
-static void image_overlay_set_text_colours();
+static void image_overlay_set_text_colors();
 
 GtkWidget *keyword_text;
 static void config_tab_keywords_save();
 
-typedef struct _ThumbSize ThumbSize;
-struct _ThumbSize
+struct ThumbSize
 {
        gint w;
        gint h;
@@ -136,16 +138,16 @@ const gchar *format_class_list[] = {
        };
 
 /* config memory values */
-static ConfOptions *c_options = NULL;
+static ConfOptions *c_options = nullptr;
 
 
 #ifdef DEBUG
 static gint debug_c;
 #endif
 
-static GtkWidget *configwindow = NULL;
-static GtkListStore *filter_store = NULL;
-static GtkTreeStore *accel_store = NULL;
+static GtkWidget *configwindow = nullptr;
+static GtkListStore *filter_store = nullptr;
+static GtkTreeStore *accel_store = nullptr;
 
 static GtkWidget *safe_delete_path_entry;
 
@@ -158,9 +160,13 @@ static GtkWidget *external_preview_extract_entry;
 static GtkWidget *sidecar_ext_entry;
 static GtkWidget *help_search_engine_entry;
 
+static GtkWidget *log_window_f1_entry;
 
-#define CONFIG_WINDOW_DEF_WIDTH                700
-#define CONFIG_WINDOW_DEF_HEIGHT       600
+
+enum {
+       CONFIG_WINDOW_DEF_WIDTH =               700,
+       CONFIG_WINDOW_DEF_HEIGHT =      600
+};
 
 /*
  *-----------------------------------------------------------------------------
@@ -168,14 +174,15 @@ static GtkWidget *help_search_engine_entry;
  *-----------------------------------------------------------------------------
  */
 
-static void zoom_increment_cb(GtkWidget *spin, gpointer UNUSED(data))
+static void zoom_increment_cb(GtkWidget *spin, gpointer)
 {
-       c_options->image.zoom_increment = (gint)(gtk_spin_button_get_value(GTK_SPIN_BUTTON(spin)) * 100.0 + 0.01);
+       c_options->image.zoom_increment = static_cast<gint>(gtk_spin_button_get_value(GTK_SPIN_BUTTON(spin)) * 100.0 + 0.01);
 }
 
-static void slideshow_delay_hours_cb(GtkWidget *spin, gpointer UNUSED(data))
+static void slideshow_delay_hours_cb(GtkWidget *spin, gpointer)
 {
-       gint mins_secs_tenths, delay;
+       gint mins_secs_tenths;
+       gint delay;
 
        mins_secs_tenths = c_options->slideshow.delay %
                                                (3600 * SLIDESHOW_SUBSECOND_PRECISION);
@@ -188,9 +195,11 @@ static void slideshow_delay_hours_cb(GtkWidget *spin, gpointer UNUSED(data))
                                                                                                        SLIDESHOW_SUBSECOND_PRECISION;
 }
 
-static void slideshow_delay_minutes_cb(GtkWidget *spin, gpointer UNUSED(data))
+static void slideshow_delay_minutes_cb(GtkWidget *spin, gpointer)
 {
-       gint hours, secs_tenths, delay;
+       gint hours;
+       gint secs_tenths;
+       gint delay;
 
        hours = c_options->slideshow.delay / (3600 * SLIDESHOW_SUBSECOND_PRECISION);
        secs_tenths = c_options->slideshow.delay % (60 * SLIDESHOW_SUBSECOND_PRECISION);
@@ -203,15 +212,16 @@ static void slideshow_delay_minutes_cb(GtkWidget *spin, gpointer UNUSED(data))
                                                                                                        SLIDESHOW_SUBSECOND_PRECISION;
 }
 
-static void slideshow_delay_seconds_cb(GtkWidget *spin, gpointer UNUSED(data))
+static void slideshow_delay_seconds_cb(GtkWidget *spin, gpointer)
 {
-       gint hours_mins, delay;
+       gint hours_mins;
+       gint delay;
 
        hours_mins = c_options->slideshow.delay / (60 * SLIDESHOW_SUBSECOND_PRECISION);
 
        delay = (hours_mins * (60 * SLIDESHOW_SUBSECOND_PRECISION)) +
-                                                       (gint)(gtk_spin_button_get_value(GTK_SPIN_BUTTON(spin)) *
-                                                       (gdouble)(SLIDESHOW_SUBSECOND_PRECISION) + 0.01);
+                                                       static_cast<gint>(gtk_spin_button_get_value(GTK_SPIN_BUTTON(spin)) *
+                                                       static_cast<gdouble>(SLIDESHOW_SUBSECOND_PRECISION) + 0.01);
 
        c_options->slideshow.delay = delay > 0 ? delay : SLIDESHOW_MIN_SECONDS *
                                                                                                        SLIDESHOW_SUBSECOND_PRECISION;
@@ -228,8 +238,8 @@ void config_entry_to_option(GtkWidget *entry, gchar **option, gchar *(*func)(con
        const gchar *buf;
 
        g_free(*option);
-       *option = NULL;
-       buf = gtk_entry_get_text(GTK_ENTRY(entry));
+       *option = nullptr;
+       buf = gq_gtk_entry_get_text(GTK_ENTRY(entry));
        if (buf && strlen(buf) > 0)
                {
                if (func)
@@ -240,9 +250,10 @@ void config_entry_to_option(GtkWidget *entry, gchar **option, gchar *(*func)(con
 }
 
 
-static gboolean accel_apply_cb(GtkTreeModel *model, GtkTreePath *UNUSED(path), GtkTreeIter *iter, gpointer UNUSED(data))
+static gboolean accel_apply_cb(GtkTreeModel *model, GtkTreePath *, GtkTreeIter *iter, gpointer)
 {
-       gchar *accel_path, *accel;
+       gchar *accel_path;
+       gchar *accel;
 
        gtk_tree_model_get(model, iter, AE_ACCEL, &accel_path, AE_KEY, &accel, -1);
 
@@ -260,7 +271,7 @@ static gboolean accel_apply_cb(GtkTreeModel *model, GtkTreePath *UNUSED(path), G
 }
 
 
-static void config_window_apply(void)
+static void config_window_apply()
 {
        gboolean refresh = FALSE;
 #ifdef HAVE_LCMS2
@@ -273,7 +284,6 @@ static void config_window_apply(void)
        if (options->file_filter.show_parent_directory != c_options->file_filter.show_parent_directory) refresh = TRUE;
        if (options->file_filter.show_dot_directory != c_options->file_filter.show_dot_directory) refresh = TRUE;
        if (options->file_sort.case_sensitive != c_options->file_sort.case_sensitive) refresh = TRUE;
-       if (options->file_sort.natural != c_options->file_sort.natural) refresh = TRUE;
        if (options->file_filter.disable_file_extension_checks != c_options->file_filter.disable_file_extension_checks) refresh = TRUE;
        if (options->file_filter.disable != c_options->file_filter.disable) refresh = TRUE;
 
@@ -298,7 +308,6 @@ static void config_window_apply(void)
        options->image.limit_autofit_size = c_options->image.limit_autofit_size;
        options->image.max_autofit_size = c_options->image.max_autofit_size;
        options->image.max_enlargement_size = c_options->image.max_enlargement_size;
-       //~ options->image.use_clutter_renderer = c_options->image.use_clutter_renderer;
        options->image.tile_size = c_options->image.tile_size;
        options->progressive_key_scrolling = c_options->progressive_key_scrolling;
        options->keyboard_scroll_step = c_options->keyboard_scroll_step;
@@ -306,8 +315,8 @@ static void config_window_apply(void)
        if (options->thumbnails.max_width != c_options->thumbnails.max_width
            || options->thumbnails.max_height != c_options->thumbnails.max_height
            || options->thumbnails.quality != c_options->thumbnails.quality)
-               {
-               thumb_format_changed = TRUE;
+               {
+               thumb_format_changed = TRUE;
                refresh = TRUE;
                options->thumbnails.max_width = c_options->thumbnails.max_width;
                options->thumbnails.max_height = c_options->thumbnails.max_height;
@@ -319,7 +328,6 @@ static void config_window_apply(void)
        options->thumbnails.use_color_management = c_options->thumbnails.use_color_management;
        options->thumbnails.collection_preview = c_options->thumbnails.collection_preview;
        options->thumbnails.use_ft_metadata = c_options->thumbnails.use_ft_metadata;
-//     options->thumbnails.use_ft_metadata_small = c_options->thumbnails.use_ft_metadata_small;
        options->thumbnails.spec_standard = c_options->thumbnails.spec_standard;
        options->metadata.enable_metadata_dirs = c_options->metadata.enable_metadata_dirs;
        options->file_filter.show_hidden_files = c_options->file_filter.show_hidden_files;
@@ -328,10 +336,9 @@ static void config_window_apply(void)
        options->file_filter.disable_file_extension_checks = c_options->file_filter.disable_file_extension_checks;
 
        options->file_sort.case_sensitive = c_options->file_sort.case_sensitive;
-       options->file_sort.natural = c_options->file_sort.natural;
        options->file_filter.disable = c_options->file_filter.disable;
 
-       config_entry_to_option(sidecar_ext_entry, &options->sidecar.ext, NULL);
+       config_entry_to_option(sidecar_ext_entry, &options->sidecar.ext, nullptr);
        sidecar_ext_parse(options->sidecar.ext);
 
        options->slideshow.random = c_options->slideshow.random;
@@ -362,7 +369,7 @@ static void config_window_apply(void)
 
        if (options->image.use_custom_border_color != c_options->image.use_custom_border_color
            || options->image.use_custom_border_color_in_fullscreen != c_options->image.use_custom_border_color_in_fullscreen
-           || !gdk_color_equal(&options->image.border_color, &c_options->image.border_color))
+           || !gdk_rgba_equal(&options->image.border_color, &c_options->image.border_color))
                {
                options->image.use_custom_border_color_in_fullscreen = c_options->image.use_custom_border_color_in_fullscreen;
                options->image.use_custom_border_color = c_options->image.use_custom_border_color;
@@ -392,6 +399,7 @@ static void config_window_apply(void)
        options->image_overlay.background_green = c_options->image_overlay.background_green;
        options->image_overlay.background_blue = c_options->image_overlay.background_blue;
        options->image_overlay.background_alpha = c_options->image_overlay.background_alpha;
+       options->image_overlay.font = c_options->image_overlay.font;
        options->update_on_time_change = c_options->update_on_time_change;
 
        options->duplicates_similarity_threshold = c_options->duplicates_similarity_threshold;
@@ -451,16 +459,22 @@ static void config_window_apply(void)
 
        options->show_predefined_keyword_tree = c_options->show_predefined_keyword_tree;
        options->expand_menu_toolbar = c_options->expand_menu_toolbar;
+       options->hamburger_menu = c_options->hamburger_menu;
+
+       options->selectable_bars.menu_bar = c_options->selectable_bars.menu_bar;
+       options->selectable_bars.tool_bar = c_options->selectable_bars.tool_bar;
+       options->selectable_bars.status_bar = c_options->selectable_bars.status_bar;
 
        options->marks_save = c_options->marks_save;
        options->with_rename = c_options->with_rename;
+       options->collections_duplicates = c_options->collections_duplicates;
        options->collections_on_top = c_options->collections_on_top;
        options->hide_window_in_fullscreen = c_options->hide_window_in_fullscreen;
-       config_entry_to_option(help_search_engine_entry, &options->help_search_engine, NULL);
+       config_entry_to_option(help_search_engine_entry, &options->help_search_engine, nullptr);
 
        options->external_preview.enable = c_options->external_preview.enable;
-       config_entry_to_option(external_preview_select_entry, &options->external_preview.select, NULL);
-       config_entry_to_option(external_preview_extract_entry, &options->external_preview.extract, NULL);
+       config_entry_to_option(external_preview_select_entry, &options->external_preview.select, nullptr);
+       config_entry_to_option(external_preview_extract_entry, &options->external_preview.extract, nullptr);
 
        options->read_metadata_in_idle = c_options->read_metadata_in_idle;
 
@@ -469,17 +483,21 @@ static void config_window_apply(void)
 
        options->threads.duplicates = c_options->threads.duplicates > 0 ? c_options->threads.duplicates : -1;
 
+       options->alternate_similarity_algorithm.enabled = c_options->alternate_similarity_algorithm.enabled;
+       options->alternate_similarity_algorithm.grayscale = c_options->alternate_similarity_algorithm.grayscale;
+
 #ifdef DEBUG
        set_debug_level(debug_c);
+       config_entry_to_option(log_window_f1_entry, &options->log_window.action, nullptr);
 #endif
 
 #ifdef HAVE_LCMS
        for (i = 0; i < COLOR_PROFILE_INPUTS; i++)
                {
-               config_entry_to_option(color_profile_input_name_entry[i], &options->color_profile.input_name[i], NULL);
-               config_entry_to_option(color_profile_input_file_entry[i], &options->color_profile.input_file[i], NULL);
+               config_entry_to_option(color_profile_input_name_entry[i], &options->color_profile.input_name[i], nullptr);
+               config_entry_to_option(color_profile_input_file_entry[i], &options->color_profile.input_file[i], nullptr);
                }
-       config_entry_to_option(color_profile_screen_file_entry, &options->color_profile.screen_file, NULL);
+       config_entry_to_option(color_profile_screen_file_entry, &options->color_profile.screen_file, nullptr);
        options->color_profile.use_x11_screen_profile = c_options->color_profile.use_x11_screen_profile;
        if (options->color_profile.render_intent != c_options->color_profile.render_intent)
                {
@@ -500,10 +518,10 @@ static void config_window_apply(void)
        if (refresh)
                {
                filter_rebuild();
-               layout_refresh(NULL);
+               layout_refresh(nullptr);
                }
 
-       if (accel_store) gtk_tree_model_foreach(GTK_TREE_MODEL(accel_store), accel_apply_cb, NULL);
+       if (accel_store) gtk_tree_model_foreach(GTK_TREE_MODEL(accel_store), accel_apply_cb, nullptr);
 
        toolbar_apply(TOOLBAR_MAIN);
        toolbar_apply(TOOLBAR_STATUS);
@@ -515,14 +533,14 @@ static void config_window_apply(void)
  *-----------------------------------------------------------------------------
  */
 
-static void config_window_close_cb(GtkWidget *UNUSED(widget), gpointer UNUSED(data))
+static void config_window_close_cb(GtkWidget *, gpointer)
 {
-       gtk_widget_destroy(configwindow);
-       configwindow = NULL;
-       filter_store = NULL;
+       gq_gtk_widget_destroy(configwindow);
+       configwindow = nullptr;
+       filter_store = nullptr;
 }
 
-static void config_window_help_cb(GtkWidget *UNUSED(widget), gpointer data)
+static void config_window_help_cb(GtkWidget *, gpointer data)
 {
        auto notebook = static_cast<GtkWidget *>(data);
        gint i;
@@ -549,9 +567,9 @@ static void config_window_help_cb(GtkWidget *UNUSED(widget), gpointer data)
        help_window_show(html_section[i]);
 }
 
-static gboolean config_window_delete(GtkWidget *UNUSED(widget), GdkEventAny *UNUSED(event), gpointer UNUSED(data))
+static gboolean config_window_delete(GtkWidget *, GdkEventAny *, gpointer)
 {
-       config_window_close_cb(NULL, NULL);
+       config_window_close_cb(nullptr, nullptr);
        return TRUE;
 }
 
@@ -583,7 +601,7 @@ static void config_window_ok_cb(GtkWidget *widget, gpointer data)
        config_window_apply();
        layout_util_sync(lw);
        save_options(options);
-       config_window_close_cb(NULL, NULL);
+       config_window_close_cb(nullptr, nullptr);
 }
 
 /*
@@ -657,7 +675,7 @@ static void add_quality_menu(GtkWidget *table, gint column, gint row, const gcha
 
        *option_c = option;
 
-       pref_table_label(table, column, row, text, 0.0);
+       pref_table_label(table, column, row, text, GTK_ALIGN_START);
 
        combo = gtk_combo_box_text_new();
 
@@ -673,7 +691,7 @@ static void add_quality_menu(GtkWidget *table, gint column, gint row, const gcha
        g_signal_connect(G_OBJECT(combo), "changed",
                         G_CALLBACK(quality_menu_cb), option_c);
 
-       gtk_table_attach(GTK_TABLE(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
+       gq_gtk_grid_attach(GTK_GRID(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
        gtk_widget_show(combo);
 }
 
@@ -684,7 +702,7 @@ static void add_dnd_default_action_selection_menu(GtkWidget *table, gint column,
 
        *option_c = option;
 
-       pref_table_label(table, column, row, text, 0.0);
+       pref_table_label(table, column, row, text, GTK_ALIGN_START);
 
        combo = gtk_combo_box_text_new();
 
@@ -700,7 +718,7 @@ static void add_dnd_default_action_selection_menu(GtkWidget *table, gint column,
        g_signal_connect(G_OBJECT(combo), "changed",
                         G_CALLBACK(dnd_default_action_selection_menu_cb), option_c);
 
-       gtk_table_attach(GTK_TABLE(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
+       gq_gtk_grid_attach(GTK_GRID(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
        gtk_widget_show(combo);
 }
 
@@ -712,7 +730,7 @@ static void add_clipboard_selection_menu(GtkWidget *table, gint column, gint row
 
        *option_c = option;
 
-       pref_table_label(table, column, row, text, 0.0);
+       pref_table_label(table, column, row, text, GTK_ALIGN_START);
 
        combo = gtk_combo_box_text_new();
 
@@ -728,7 +746,7 @@ static void add_clipboard_selection_menu(GtkWidget *table, gint column, gint row
        g_signal_connect(G_OBJECT(combo), "changed",
                         G_CALLBACK(clipboard_selection_menu_cb), option_c);
 
-       gtk_table_attach(GTK_TABLE(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
+       gq_gtk_grid_attach(GTK_GRID(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
        gtk_widget_show(combo);
 }
 
@@ -756,7 +774,7 @@ static void add_zoom_style_selection_menu(GtkWidget *table, gint column, gint ro
 
        *option_c = option;
 
-       pref_table_label(table, column, row, text, 0.0);
+       pref_table_label(table, column, row, text, GTK_ALIGN_START);
 
        combo = gtk_combo_box_text_new();
 
@@ -769,158 +787,87 @@ static void add_zoom_style_selection_menu(GtkWidget *table, gint column, gint ro
 
        g_signal_connect(G_OBJECT(combo), "changed", G_CALLBACK(zoom_style_selection_menu_cb), option_c);
 
-       gtk_table_attach(GTK_TABLE(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
+       gq_gtk_grid_attach(GTK_GRID(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
        gtk_widget_show(combo);
 }
 
-typedef struct _UseableMouseItems UseableMouseItems;
-struct _UseableMouseItems
-{
-       const gchar *name; /* GtkActionEntry terminology */
-       const gchar *label;
-       const gchar *stock_id;
-};
-
-static const UseableMouseItems useable_mouse_items[] = {
-       {"", "", NULL},
-       {"FirstImage",  N_("First Image"), GTK_STOCK_GOTO_TOP},
-       {"PrevImage",   N_("Previous Image"), GTK_STOCK_GO_UP},
-       {"NextImage",   N_("Next Image"), GTK_STOCK_GO_DOWN},
-       {"LastImage",   N_("Last Image"), GTK_STOCK_GOTO_BOTTOM},
-       {"Back",        N_("Back"), GTK_STOCK_GO_BACK},
-       {"Forward",     N_("Forward"), GTK_STOCK_GO_FORWARD},
-       {"Home",        N_("Home"), GTK_STOCK_HOME},
-       {"Up",  N_("Up"), GTK_STOCK_GO_UP},
-       {"FirstPage",   N_("First page"), GTK_STOCK_MEDIA_PREVIOUS},
-       {"LastPage",    N_("Last Page"), GTK_STOCK_MEDIA_NEXT},
-       {"NextPage",    N_("Next page"), GTK_STOCK_MEDIA_FORWARD},
-       {"PrevPage",    N_("Previous Page"), GTK_STOCK_MEDIA_REWIND},
-       {"NewWindow",   N_("New _window"), GTK_STOCK_NEW},
-       {"NewCollection",       N_("New collection"), GTK_STOCK_INDEX},
-       {"OpenCollection",      N_("Open collection"), GTK_STOCK_OPEN},
-       {"Search",      N_("Search"), GTK_STOCK_FIND},
-       {"FindDupes",   N_("Find duplicates"), GTK_STOCK_FIND},
-       {"NewFolder",   N_("New folder"),GTK_STOCK_DIRECTORY},
-       {"Copy",        N_("Copy"), GTK_STOCK_COPY},
-       {"Move",        N_("Move"), PIXBUF_INLINE_ICON_MOVE},
-       {"Rename",      N_("Rename"), PIXBUF_INLINE_ICON_RENAME},
-       {"Delete",      N_("Delete"), GTK_STOCK_DELETE},
-       {"CloseWindow", N_("Close Window"), GTK_STOCK_CLOSE},
-       {"PanView",     N_("Pan view"), PIXBUF_INLINE_ICON_PANORAMA},
-       {"SelectAll",   N_("Select all"), PIXBUF_INLINE_ICON_SELECT_ALL},
-       {"SelectNone",  N_("Select none"), PIXBUF_INLINE_ICON_SELECT_NONE},
-       {"SelectInvert",        N_("Select invert"), PIXBUF_INLINE_ICON_SELECT_INVERT},
-       {"ShowFileFilter",      N_("Show file filter"), PIXBUF_INLINE_ICON_FILE_FILTER},
-       {"RectangularSelection",        N_("Select rectangle"), PIXBUF_INLINE_ICON_SELECT_RECTANGLE},
-       {"Print",       N_("Print"), GTK_STOCK_PRINT},
-       {"Preferences", N_("Preferences"), GTK_STOCK_PREFERENCES},
-       {"LayoutConfig",        N_("Configure this window"), GTK_STOCK_PREFERENCES},
-       {"Maintenance", N_("Cache maintenance"), PIXBUF_INLINE_ICON_MAINTENANCE},
-       {"RotateCW",    N_("Rotate clockwise 90°"), PIXBUF_INLINE_ICON_CW},
-       {"RotateCCW",   N_("Rotate counterclockwise 90°"), PIXBUF_INLINE_ICON_CCW},
-       {"Rotate180",   N_("Rotate 180°"), PIXBUF_INLINE_ICON_180},
-       {"Mirror",      N_("Mirror"), PIXBUF_INLINE_ICON_MIRROR},
-       {"Flip",        N_("Flip"), PIXBUF_INLINE_ICON_FLIP},
-       {"AlterNone",   N_("Original state"), PIXBUF_INLINE_ICON_ORIGINAL},
-       {"ZoomIn",      N_("Zoom in"), GTK_STOCK_ZOOM_IN},
-       {"ZoomOut",     N_("Zoom out"), GTK_STOCK_ZOOM_OUT},
-       {"Zoom100",     N_("Zoom 1:1"), GTK_STOCK_ZOOM_100},
-       {"ZoomFit",     N_("Zoom to fit"), GTK_STOCK_ZOOM_FIT},
-       {"ZoomFillHor", N_("Fit Horizontaly"), PIXBUF_INLINE_ICON_ZOOMFILLHOR},
-       {"ZoomFillVert",        N_("Fit vertically"), PIXBUF_INLINE_ICON_ZOOMFILLVERT},
-       {"Zoom200",     N_("Zoom 2:1"), GTK_STOCK_FILE},
-       {"Zoom300",     N_("Zoom 3:1"), GTK_STOCK_FILE},
-       {"Zoom400",     N_("Zoom 4:1"), GTK_STOCK_FILE},
-       {"Zoom50",      N_("Zoom 1:2"), GTK_STOCK_FILE},
-       {"Zoom33",      N_("Zoom1:3"), GTK_STOCK_FILE},
-       {"Zoom25",      N_("Zoom 1:4"), GTK_STOCK_FILE},
-       {"ConnectZoomIn",       N_("Connected Zoom in"), GTK_STOCK_ZOOM_IN},
-       {"SplitPaneSync",       N_("Split Pane Sync"), PIXBUF_INLINE_SPLIT_PANE_SYNC},
-       {"Grayscale",   N_("Grayscale"), PIXBUF_INLINE_ICON_GRAYSCALE},
-       {"OverUnderExposed",    N_("Over Under Exposed"), PIXBUF_INLINE_ICON_EXPOSURE},
-       {"HideTools",   N_("Hide file list"), PIXBUF_INLINE_ICON_HIDETOOLS},
-       {"SlideShowPause",      N_("Pause slideshow"), GTK_STOCK_MEDIA_PAUSE},
-       {"SlideShowFaster",     N_("Slideshow Faster"), GTK_STOCK_FILE},
-       {"SlideShowSlower",     N_("Slideshow Slower"), GTK_STOCK_FILE},
-       {"Refresh",     N_("Refresh"), GTK_STOCK_REFRESH},
-       {"HelpContents",        N_("Help"), GTK_STOCK_HELP},
-       {"ExifWin",     N_("Exif window"), PIXBUF_INLINE_ICON_EXIF},
-       {"Thumbnails",  N_("Show thumbnails"), PIXBUF_INLINE_ICON_THUMB},
-       {"ShowMarks",   N_("Show marks"), PIXBUF_INLINE_ICON_MARKS},
-       {"DrawRectangle",       N_("Draw Rectangle"), PIXBUF_INLINE_ICON_DRAW_RECTANGLE},
-       {"FloatTools",  N_("Float file list"), PIXBUF_INLINE_ICON_FLOAT},
-       {"SBar",        N_("Info sidebar"), PIXBUF_INLINE_ICON_INFO},
-       {"SBarSort",    N_("Sort manager"), PIXBUF_INLINE_ICON_SORT},
-       {"Quit",        N_("Quit"), GTK_STOCK_QUIT},
-       {NULL,          NULL, NULL}
-};
-
 static void mouse_buttons_selection_menu_cb(GtkWidget *combo, gpointer data)
 {
+       ActionItem *action_item = nullptr;
        auto option = static_cast<gchar **>(data);
        gchar *label;
+       GList *list;
+       GList *work;
 
        label = gtk_combo_box_text_get_active_text(GTK_COMBO_BOX_TEXT(combo));
 
-       const UseableMouseItems *list = useable_mouse_items;
+       list = get_action_items();
+       work = list;
 
-       while (list->name)
+       while (work)
                {
-               if (g_strcmp0(list->label, label) == 0)
+               action_item = static_cast<ActionItem *>(work->data);
+               if (g_strcmp0(action_item->label, label) == 0)
                        {
                        break;
                        }
-               list++;
+               work=work->next;
                }
 
        g_free(*option);
-       *option = g_strdup(list->name);
+       *option = g_strdup(action_item->name);
        g_free(label);
+       action_items_free(list);
 }
 
-static void add_mouse_selection_menu(GtkWidget *table, gint column, gint row, const gchar *text,
-                            gchar *option, gchar **option_c)
+static void add_mouse_selection_menu(GtkWidget *table, gint column, gint row, const gchar *text, gchar *option, gchar **option_c)
 {
-       GtkWidget *combo;
+       ActionItem *action_item;
        gint current = 0;
        gint i = 0;
+       GList *list;
+       GList *work;
+       GtkWidget *combo;
 
        *option_c = option;
 
-       pref_table_label(table, column, row, text, 0.0);
+       pref_table_label(table, column, row, text, GTK_ALIGN_START);
 
        combo = gtk_combo_box_text_new();
 
-       const UseableMouseItems *list = useable_mouse_items;
-
-       while (list->name)
+       list = get_action_items();
+       work = list;
+       while (work)
                {
-               gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), list->label);
-               if (g_strcmp0(list->name, option) == 0)
+               action_item = static_cast<ActionItem *>(work->data);
+               gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), action_item->label);
+
+               if (g_strcmp0(action_item->name, option) == 0)
                        {
                        current = i;
                        }
                i++;
-               list++;
+               work = work->next;
                }
 
+       action_items_free(list);
+
        gtk_combo_box_set_active(GTK_COMBO_BOX(combo), current);
 
-       g_signal_connect(G_OBJECT(combo), "changed",
-                        G_CALLBACK(mouse_buttons_selection_menu_cb), option_c);
+       g_signal_connect(G_OBJECT(combo), "changed", G_CALLBACK(mouse_buttons_selection_menu_cb), option_c);
 
-       gtk_table_attach(GTK_TABLE(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
+       gq_gtk_grid_attach(GTK_GRID(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
        gtk_widget_show(combo);
 }
 
-static void thumb_size_menu_cb(GtkWidget *combo, gpointer UNUSED(data))
+static void thumb_size_menu_cb(GtkWidget *combo, gpointer)
 {
        gint n;
 
        n = gtk_combo_box_get_active(GTK_COMBO_BOX(combo));
        if (n < 0) return;
 
-       if ((guint) n < sizeof(thumb_size_list) / sizeof(ThumbSize))
+       if (static_cast<guint>(n) < sizeof(thumb_size_list) / sizeof(ThumbSize))
                {
                c_options->thumbnails.max_width = thumb_size_list[n].w;
                c_options->thumbnails.max_height = thumb_size_list[n].h;
@@ -941,14 +888,15 @@ static void add_thumb_size_menu(GtkWidget *table, gint column, gint row, gchar *
        c_options->thumbnails.max_width = options->thumbnails.max_width;
        c_options->thumbnails.max_height = options->thumbnails.max_height;
 
-       pref_table_label(table, column, row, text, 0.0);
+       pref_table_label(table, column, row, text, GTK_ALIGN_START);
 
        combo = gtk_combo_box_text_new();
 
        current = -1;
-       for (i = 0; (guint) i < sizeof(thumb_size_list) / sizeof(ThumbSize); i++)
+       for (i = 0; static_cast<guint>(i) < sizeof(thumb_size_list) / sizeof(ThumbSize); i++)
                {
-               gint w, h;
+               gint w;
+               gint h;
                gchar *buf;
 
                w = thumb_size_list[i].w;
@@ -976,7 +924,7 @@ static void add_thumb_size_menu(GtkWidget *table, gint column, gint row, gchar *
        g_signal_connect(G_OBJECT(combo), "changed",
                         G_CALLBACK(thumb_size_menu_cb), NULL);
 
-       gtk_table_attach(GTK_TABLE(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
+       gq_gtk_grid_attach(GTK_GRID(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
        gtk_widget_show(combo);
 }
 
@@ -1043,7 +991,7 @@ static void add_stereo_mode_menu(GtkWidget *table, gint column, gint row, const
 
        *option_c = option;
 
-       pref_table_label(table, column, row, text, 0.0);
+       pref_table_label(table, column, row, text, GTK_ALIGN_START);
 
        combo = gtk_combo_box_text_new();
 
@@ -1095,7 +1043,7 @@ static void add_stereo_mode_menu(GtkWidget *table, gint column, gint row, const
        g_signal_connect(G_OBJECT(combo), "changed",
                         G_CALLBACK(stereo_mode_menu_cb), option_c);
 
-       gtk_table_attach(GTK_TABLE(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
+       gq_gtk_grid_attach(GTK_GRID(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
        gtk_widget_show(combo);
 }
 
@@ -1125,10 +1073,10 @@ static void add_video_menu(GtkWidget *table, gint column, gint row, const gchar
 
        *option_c = option;
 
-       pref_table_label(table, column, row, text, 0.0);
+       pref_table_label(table, column, row, text, GTK_ALIGN_START);
 
        combo = gtk_combo_box_text_new();
-       g_list_foreach(eds,video_menu_populate,(gpointer)combo);
+       g_list_foreach(eds,video_menu_populate,combo);
        current = option ? g_list_index(eds,g_hash_table_lookup(editors,option)): -1;
 
        gtk_combo_box_set_active(GTK_COMBO_BOX(combo), current);
@@ -1136,11 +1084,11 @@ static void add_video_menu(GtkWidget *table, gint column, gint row, const gchar
        g_signal_connect(G_OBJECT(combo), "changed",
                         G_CALLBACK(video_menu_cb), option_c);
 
-       gtk_table_attach(GTK_TABLE(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
+       gq_gtk_grid_attach(GTK_GRID(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
        gtk_widget_show(combo);
 }
 
-static void filter_store_populate(void)
+static void filter_store_populate()
 {
        GList *work;
 
@@ -1162,8 +1110,7 @@ static void filter_store_populate(void)
                }
 }
 
-static void filter_store_ext_edit_cb(GtkCellRendererText *UNUSED(cell), gchar *path_str,
-                                    gchar *new_text, gpointer data)
+static void filter_store_ext_edit_cb(GtkCellRendererText *, gchar *path_str, gchar *new_text, gpointer data)
 {
        auto model = static_cast<GtkWidget *>(data);
        auto fe = static_cast<FilterEntry *>(data);
@@ -1183,8 +1130,7 @@ static void filter_store_ext_edit_cb(GtkCellRendererText *UNUSED(cell), gchar *p
        filter_rebuild();
 }
 
-static void filter_store_class_edit_cb(GtkCellRendererText *UNUSED(cell), gchar *path_str,
-                                      gchar *new_text, gpointer data)
+static void filter_store_class_edit_cb(GtkCellRendererText *, gchar *path_str, gchar *new_text, gpointer data)
 {
        auto model = static_cast<GtkWidget *>(data);
        auto fe = static_cast<FilterEntry *>(data);
@@ -1211,8 +1157,7 @@ static void filter_store_class_edit_cb(GtkCellRendererText *UNUSED(cell), gchar
        filter_rebuild();
 }
 
-static void filter_store_desc_edit_cb(GtkCellRendererText *UNUSED(cell), gchar *path_str,
-                                     gchar *new_text, gpointer data)
+static void filter_store_desc_edit_cb(GtkCellRendererText *, gchar *path_str, gchar *new_text, gpointer data)
 {
        auto model = static_cast<GtkWidget *>(data);
        FilterEntry *fe;
@@ -1231,8 +1176,7 @@ static void filter_store_desc_edit_cb(GtkCellRendererText *UNUSED(cell), gchar *
        gtk_tree_path_free(tpath);
 }
 
-static void filter_store_enable_cb(GtkCellRendererToggle *UNUSED(renderer),
-                                  gchar *path_str, gpointer data)
+static void filter_store_enable_cb(GtkCellRendererToggle *, gchar *path_str, gpointer data)
 {
        auto model = static_cast<GtkWidget *>(data);
        FilterEntry *fe;
@@ -1249,8 +1193,7 @@ static void filter_store_enable_cb(GtkCellRendererToggle *UNUSED(renderer),
        filter_rebuild();
 }
 
-static void filter_store_writable_cb(GtkCellRendererToggle *UNUSED(renderer),
-                                    gchar *path_str, gpointer data)
+static void filter_store_writable_cb(GtkCellRendererToggle *, gchar *path_str, gpointer data)
 {
        auto model = static_cast<GtkWidget *>(data);
        FilterEntry *fe;
@@ -1268,8 +1211,7 @@ static void filter_store_writable_cb(GtkCellRendererToggle *UNUSED(renderer),
        filter_rebuild();
 }
 
-static void filter_store_sidecar_cb(GtkCellRendererToggle *UNUSED(renderer),
-                                   gchar *path_str, gpointer data)
+static void filter_store_sidecar_cb(GtkCellRendererToggle *, gchar *path_str, gpointer data)
 {
        auto model = static_cast<GtkWidget *>(data);
        FilterEntry *fe;
@@ -1287,7 +1229,7 @@ static void filter_store_sidecar_cb(GtkCellRendererToggle *UNUSED(renderer),
        filter_rebuild();
 }
 
-static void filter_set_func(GtkTreeViewColumn *UNUSED(tree_column), GtkCellRenderer *cell,
+static void filter_set_func(GtkTreeViewColumn *, GtkCellRenderer *cell,
                            GtkTreeModel *tree_model, GtkTreeIter *iter, gpointer data)
 {
        FilterEntry *fe;
@@ -1335,7 +1277,7 @@ static gboolean filter_add_scroll(gpointer data)
        gboolean valid;
        FilterEntry *filter;
 
-       rows = gtk_tree_model_iter_n_children(GTK_TREE_MODEL(filter_store), NULL);
+       rows = gtk_tree_model_iter_n_children(GTK_TREE_MODEL(filter_store), nullptr);
        path = gtk_tree_path_new_from_indices(rows-1, -1);
 
        column = gtk_tree_view_get_column(GTK_TREE_VIEW(data), 0);
@@ -1370,15 +1312,15 @@ static gboolean filter_add_scroll(gpointer data)
        return(G_SOURCE_REMOVE);
 }
 
-static void filter_add_cb(GtkWidget *UNUSED(widget), gpointer data)
+static void filter_add_cb(GtkWidget *, gpointer data)
 {
        filter_add_unique("description", ".new", FORMAT_CLASS_IMAGE, TRUE, FALSE, TRUE);
        filter_store_populate();
 
-       g_idle_add((GSourceFunc)filter_add_scroll, data);
+       g_idle_add(static_cast<GSourceFunc>(filter_add_scroll), data);
 }
 
-static void filter_remove_cb(GtkWidget *UNUSED(widget), gpointer data)
+static void filter_remove_cb(GtkWidget *, gpointer data)
 {
        auto filter_view = static_cast<GtkWidget *>(data);
        GtkTreeSelection *selection;
@@ -1387,7 +1329,7 @@ static void filter_remove_cb(GtkWidget *UNUSED(widget), gpointer data)
 
        if (!filter_store) return;
        selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(filter_view));
-       if (!gtk_tree_selection_get_selected(selection, NULL, &iter)) return;
+       if (!gtk_tree_selection_get_selected(selection, nullptr, &iter)) return;
        gtk_tree_model_get(GTK_TREE_MODEL(filter_store), &iter, 0, &fe, -1);
        if (!fe) return;
 
@@ -1415,17 +1357,17 @@ static gboolean filter_default_ok_scroll(GtkTreeView *data)
        return(G_SOURCE_REMOVE);
 }
 
-static void filter_default_ok_cb(GenericDialog *gd, gpointer UNUSED(data))
+static void filter_default_ok_cb(GenericDialog *gd, gpointer)
 {
        filter_reset();
        filter_add_defaults();
        filter_rebuild();
        filter_store_populate();
 
-       g_idle_add((GSourceFunc)filter_default_ok_scroll, gd->data);
+       g_idle_add(reinterpret_cast<GSourceFunc>(filter_default_ok_scroll), gd->data);
 }
 
-static void dummy_cancel_cb(GenericDialog *UNUSED(gd), gpointer UNUSED(data))
+static void dummy_cancel_cb(GenericDialog *, gpointer)
 {
        /* no op, only so cancel button appears */
 }
@@ -1437,9 +1379,9 @@ static void filter_default_cb(GtkWidget *widget, gpointer data)
        gd = generic_dialog_new(_("Reset filters"),
                                "reset_filter", widget, TRUE,
                                dummy_cancel_cb, data);
-       generic_dialog_add_message(gd, GTK_STOCK_DIALOG_QUESTION, _("Reset filters"),
+       generic_dialog_add_message(gd, GQ_ICON_DIALOG_QUESTION, _("Reset filters"),
                                   _("This will reset the file filters to the defaults.\nContinue?"), TRUE);
-       generic_dialog_add_button(gd, GTK_STOCK_OK, NULL, filter_default_ok_cb, TRUE);
+       generic_dialog_add_button(gd, GQ_ICON_OK, "OK", filter_default_ok_cb, TRUE);
        gtk_widget_show(gd->dialog);
 }
 
@@ -1451,36 +1393,36 @@ static void filter_disable_cb(GtkWidget *widget, gpointer data)
                                 !gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)));
 }
 
-static void safe_delete_view_cb(GtkWidget *UNUSED(widget), gpointer UNUSED(data))
+static void safe_delete_view_cb(GtkWidget *, gpointer)
 {
-       layout_set_path(NULL, gtk_entry_get_text(GTK_ENTRY(safe_delete_path_entry)));
+       layout_set_path(nullptr, gq_gtk_entry_get_text(GTK_ENTRY(safe_delete_path_entry)));
 }
 
-static void safe_delete_clear_ok_cb(GenericDialog *UNUSED(gd), gpointer UNUSED(data))
+static void safe_delete_clear_ok_cb(GenericDialog *, gpointer)
 {
        file_util_trash_clear();
 }
 
-static void safe_delete_clear_cb(GtkWidget *widget, gpointer UNUSED(data))
+static void safe_delete_clear_cb(GtkWidget *widget, gpointer)
 {
        GenericDialog *gd;
        GtkWidget *entry;
        gd = generic_dialog_new(_("Clear trash"),
                                "clear_trash", widget, TRUE,
-                               dummy_cancel_cb, NULL);
-       generic_dialog_add_message(gd, GTK_STOCK_DIALOG_QUESTION, _("Clear trash"),
+                               dummy_cancel_cb, nullptr);
+       generic_dialog_add_message(gd, GQ_ICON_DIALOG_QUESTION, _("Clear trash"),
                                    _("This will remove the trash contents."), FALSE);
-       generic_dialog_add_button(gd, GTK_STOCK_OK, NULL, safe_delete_clear_ok_cb, TRUE);
+       generic_dialog_add_button(gd, GQ_ICON_OK, "OK", safe_delete_clear_ok_cb, TRUE);
        entry = gtk_entry_new();
        gtk_widget_set_can_focus(entry, FALSE);
        gtk_editable_set_editable(GTK_EDITABLE(entry), FALSE);
-       if (options->file_ops.safe_delete_path) gtk_entry_set_text(GTK_ENTRY(entry), options->file_ops.safe_delete_path);
-       gtk_box_pack_start(GTK_BOX(gd->vbox), entry, FALSE, FALSE, 0);
+       if (options->file_ops.safe_delete_path) gq_gtk_entry_set_text(GTK_ENTRY(entry), options->file_ops.safe_delete_path);
+       gq_gtk_box_pack_start(GTK_BOX(gd->vbox), entry, FALSE, FALSE, 0);
        gtk_widget_show(entry);
        gtk_widget_show(gd->dialog);
 }
 
-static void image_overlay_template_view_changed_cb(GtkWidget *UNUSED(widget), gpointer data)
+static void image_overlay_template_view_changed_cb(GtkWidget *, gpointer data)
 {
        GtkWidget *pTextView;
        GtkTextBuffer *pTextBuffer;
@@ -1497,7 +1439,7 @@ static void image_overlay_template_view_changed_cb(GtkWidget *UNUSED(widget), gp
                                          gtk_text_buffer_get_text(pTextBuffer, &iStart, &iEnd, TRUE));
 }
 
-static void image_overlay_default_template_ok_cb(GenericDialog *UNUSED(gd), gpointer data)
+static void image_overlay_default_template_ok_cb(GenericDialog *, gpointer data)
 {
        auto text_view = static_cast<GtkTextView *>(data);
        GtkTextBuffer *buffer;
@@ -1516,91 +1458,162 @@ static void image_overlay_default_template_cb(GtkWidget *widget, gpointer data)
        gd = generic_dialog_new(_("Reset image overlay template string"),
                                "reset_image_overlay_template_string", widget, TRUE,
                                dummy_cancel_cb, data);
-       generic_dialog_add_message(gd, GTK_STOCK_DIALOG_QUESTION, _("Reset image overlay template string"),
+       generic_dialog_add_message(gd, GQ_ICON_DIALOG_QUESTION, _("Reset image overlay template string"),
                                   _("This will reset the image overlay template string to the default.\nContinue?"), TRUE);
-       generic_dialog_add_button(gd, GTK_STOCK_OK, NULL, image_overlay_default_template_ok_cb, TRUE);
+       generic_dialog_add_button(gd, GQ_ICON_OK, "OK", image_overlay_default_template_ok_cb, TRUE);
        gtk_widget_show(gd->dialog);
 }
 
-static void image_overlay_help_cb(GtkWidget *UNUSED(widget), gpointer UNUSED(data))
+static void image_overlay_help_cb(GtkWidget *, gpointer)
 {
        help_window_show("GuideOptionsOSD.html");
 }
 
-static void image_overlay_set_font_cb(GtkWidget *widget, gpointer UNUSED(data))
+static void font_activated_cb(GtkFontChooser *widget, gchar *fontname, gpointer)
 {
-       GtkWidget *dialog;
-       char *font;
-       PangoFontDescription *font_desc;
+       g_free(c_options->image_overlay.font);
+       c_options->image_overlay.font = g_strdup(fontname);
+       g_free(fontname);
 
-       dialog = gtk_font_chooser_dialog_new("Image Overlay Font", GTK_WINDOW(gtk_widget_get_toplevel(widget)));
-       gtk_font_chooser_set_font(GTK_FONT_CHOOSER(dialog), options->image_overlay.font);
+       gq_gtk_widget_destroy(GTK_WIDGET(widget));
+}
+
+static void font_response_cb(GtkDialog *dialog, gint response_id, gpointer)
+{
+       gchar *font;
 
-       if (gtk_dialog_run(GTK_DIALOG(dialog)) != GTK_RESPONSE_CANCEL)
+       g_free(c_options->image_overlay.font);
+       c_options->image_overlay.font = g_strdup(options->image_overlay.font);
+
+       if (response_id == GTK_RESPONSE_OK)
                {
-               font_desc = gtk_font_chooser_get_font_desc(GTK_FONT_CHOOSER(dialog));
-               font = pango_font_description_to_string(font_desc);
+               font = gtk_font_chooser_get_font(GTK_FONT_CHOOSER(dialog));
                g_free(c_options->image_overlay.font);
                c_options->image_overlay.font = g_strdup(font);
                g_free(font);
                }
 
-       gtk_widget_destroy(dialog);
+       g_object_unref(dialog);
 }
 
-static void image_overlay_set_text_colour_cb(GtkWidget *widget, gpointer UNUSED(data))
+static void image_overlay_set_font_cb(GtkWidget *widget, gpointer)
 {
        GtkWidget *dialog;
-       GdkRGBA colour;
-
-       dialog = gtk_color_chooser_dialog_new("Image Overlay Text Colour", GTK_WINDOW(gtk_widget_get_toplevel(widget)));
-       colour.red = options->image_overlay.text_red;
-       colour.green = options->image_overlay.text_green;
-       colour.blue = options->image_overlay.text_blue;
-       colour.alpha = options->image_overlay.text_alpha;
-       gtk_color_chooser_set_rgba(GTK_COLOR_CHOOSER(dialog), &colour);
-       gtk_color_chooser_set_use_alpha(GTK_COLOR_CHOOSER(dialog), TRUE);
 
-       if (gtk_dialog_run(GTK_DIALOG(dialog)) != GTK_RESPONSE_CANCEL)
+       dialog = gtk_font_chooser_dialog_new("Image Overlay Font", GTK_WINDOW(gtk_widget_get_toplevel(widget)));
+       gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
+       gtk_font_chooser_set_font(GTK_FONT_CHOOSER(dialog), options->image_overlay.font);
+
+       g_signal_connect(dialog, "font-activated", G_CALLBACK(font_activated_cb), nullptr);
+       g_signal_connect(dialog, "response", G_CALLBACK(font_response_cb), nullptr);
+
+       gtk_widget_show(dialog);
+}
+
+static void text_color_activated_cb(GtkColorChooser *chooser, GdkRGBA *color, gpointer)
+{
+       c_options->image_overlay.text_red = color->red * 255;
+       c_options->image_overlay.text_green = color->green * 255;
+       c_options->image_overlay.text_blue = color->blue * 255;
+       c_options->image_overlay.text_alpha = color->alpha * 255;
+
+       gq_gtk_widget_destroy(GTK_WIDGET(chooser));
+}
+
+static void text_color_response_cb(GtkDialog *dialog, gint response_id, gpointer)
+{
+       GdkRGBA color;
+
+       c_options->image_overlay.text_red = options->image_overlay.text_red;
+       c_options->image_overlay.text_green = options->image_overlay.text_green;
+       c_options->image_overlay.text_blue = options->image_overlay.text_blue;
+       c_options->image_overlay.text_alpha = options->image_overlay.text_alpha;
+
+       if (response_id == GTK_RESPONSE_OK)
                {
-               gtk_color_chooser_get_rgba(GTK_COLOR_CHOOSER(dialog), &colour);
-               c_options->image_overlay.text_red = colour.red*255;
-               c_options->image_overlay.text_green = colour.green*255;
-               c_options->image_overlay.text_blue = colour.blue*255;
-               c_options->image_overlay.text_alpha = colour.alpha*255;
+               gtk_color_chooser_get_rgba(GTK_COLOR_CHOOSER(dialog), &color);
+               c_options->image_overlay.text_red = color.red * 255;
+               c_options->image_overlay.text_green = color.green * 255;
+               c_options->image_overlay.text_blue = color.blue * 255;
+               c_options->image_overlay.text_alpha = color.alpha * 255;
                }
-       gtk_widget_destroy(dialog);
-}
 
+       g_object_unref(dialog);
+}
 
-static void image_overlay_set_background_colour_cb(GtkWidget *widget, gpointer UNUSED(data))
+static void image_overlay_set_text_color_cb(GtkWidget *widget, gpointer)
 {
        GtkWidget *dialog;
-       GdkRGBA colour;
-
-       dialog = gtk_color_chooser_dialog_new("Image Overlay Background Colour", GTK_WINDOW(gtk_widget_get_toplevel(widget)));
-       colour.red = options->image_overlay.background_red;
-       colour.green = options->image_overlay.background_green;
-       colour.blue = options->image_overlay.background_blue;
-       colour.alpha = options->image_overlay.background_alpha;
-       gtk_color_chooser_set_rgba(GTK_COLOR_CHOOSER(dialog), &colour);
+       GdkRGBA color;
+
+       dialog = gtk_color_chooser_dialog_new(_("Image Overlay Text Color"), GTK_WINDOW(gtk_widget_get_toplevel(widget)));
+       color.red = options->image_overlay.text_red;
+       color.green = options->image_overlay.text_green;
+       color.blue = options->image_overlay.text_blue;
+       color.alpha = options->image_overlay.text_alpha;
+       gtk_color_chooser_set_rgba(GTK_COLOR_CHOOSER(dialog), &color);
        gtk_color_chooser_set_use_alpha(GTK_COLOR_CHOOSER(dialog), TRUE);
 
-       if (gtk_dialog_run(GTK_DIALOG(dialog)) != GTK_RESPONSE_CANCEL)
+       g_signal_connect(dialog, "color-activated", G_CALLBACK(text_color_activated_cb), nullptr);
+       g_signal_connect(dialog, "response", G_CALLBACK(text_color_response_cb), nullptr);
+
+       gtk_widget_show(dialog);
+}
+
+static void bg_color_activated_cb(GtkColorChooser *chooser, GdkRGBA *color, gpointer)
+{
+       c_options->image_overlay.background_red = color->red * 255;
+       c_options->image_overlay.background_green = color->green * 255;
+       c_options->image_overlay.background_blue = color->blue * 255;
+       c_options->image_overlay.background_alpha = color->alpha * 255;
+
+       gq_gtk_widget_destroy(GTK_WIDGET(chooser));
+}
+
+static void bg_color_response_cb(GtkDialog *dialog, gint response_id, gpointer)
+{
+       GdkRGBA color;
+
+       c_options->image_overlay.background_red = options->image_overlay.background_red;
+       c_options->image_overlay.background_green = options->image_overlay.background_green;
+       c_options->image_overlay.background_blue = options->image_overlay.background_blue;
+       c_options->image_overlay.background_alpha = options->image_overlay.background_alpha;
+
+       if (response_id == GTK_RESPONSE_OK)
                {
-               gtk_color_chooser_get_rgba(GTK_COLOR_CHOOSER(dialog), &colour);
-               c_options->image_overlay.background_red = colour.red*255;
-               c_options->image_overlay.background_green = colour.green*255;
-               c_options->image_overlay.background_blue = colour.blue*255;
-               c_options->image_overlay.background_alpha = colour.alpha*255;
+               gtk_color_chooser_get_rgba(GTK_COLOR_CHOOSER(dialog), &color);
+               c_options->image_overlay.background_red = color.red * 255;
+               c_options->image_overlay.background_green = color.green * 255;
+               c_options->image_overlay.background_blue = color.blue * 255;
+               c_options->image_overlay.background_alpha = color.alpha * 255;
                }
-       gtk_widget_destroy(dialog);
+       gq_gtk_widget_destroy(GTK_WIDGET(dialog));
+}
+
+static void image_overlay_set_background_color_cb(GtkWidget *widget, gpointer)
+{
+       GtkWidget *dialog;
+       GdkRGBA color;
+
+       dialog = gtk_color_chooser_dialog_new(_("Image Overlay Background Color"), GTK_WINDOW(gtk_widget_get_toplevel(widget)));
+       color.red = options->image_overlay.background_red;
+       color.green = options->image_overlay.background_green;
+       color.blue = options->image_overlay.background_blue;
+       color.alpha = options->image_overlay.background_alpha;
+       gtk_color_chooser_set_rgba(GTK_COLOR_CHOOSER(dialog), &color);
+       gtk_color_chooser_set_use_alpha(GTK_COLOR_CHOOSER(dialog), TRUE);
+
+       g_signal_connect(dialog, "color-activated", G_CALLBACK(bg_color_activated_cb), nullptr);
+       g_signal_connect(dialog, "response", G_CALLBACK(bg_color_response_cb), nullptr);
+
+       gtk_widget_show(dialog);
 }
 
-static void accel_store_populate(void)
+static void accel_store_populate()
 {
        LayoutWindow *lw;
-       GList *groups, *actions;
+       GList *groups;
+       GList *actions;
        GtkAction *action;
        const gchar *accel_path;
        GtkAccelKey key;
@@ -1622,13 +1635,16 @@ static void accel_store_populate(void)
                        accel_path = gtk_action_get_accel_path(action);
                        if (accel_path && gtk_accel_map_lookup_entry(accel_path, &key))
                                {
-                               gchar *label, *label2, *tooltip, *accel;
+                               gchar *label;
+                               gchar *label2;
+                               gchar *tooltip;
+                               gchar *accel;
                                g_object_get(action,
                                             "tooltip", &tooltip,
                                             "label", &label,
                                             NULL);
 
-                               if (pango_parse_markup(label, -1, '_', NULL, &label2, NULL, NULL) && label2)
+                               if (pango_parse_markup(label, -1, '_', nullptr, &label2, nullptr, nullptr) && label2)
                                        {
                                        g_free(label);
                                        label = label2;
@@ -1638,7 +1654,7 @@ static void accel_store_populate(void)
 
                                if (tooltip)
                                        {
-                                       gtk_tree_store_append(accel_store, &iter, NULL);
+                                       gtk_tree_store_append(accel_store, &iter, nullptr);
                                        gtk_tree_store_set(accel_store, &iter,
                                                           AE_ACTION, label,
                                                           AE_KEY, accel,
@@ -1658,12 +1674,12 @@ static void accel_store_populate(void)
                }
 }
 
-static void accel_store_cleared_cb(GtkCellRendererAccel *UNUSED(accel), gchar *UNUSED(path_string), gpointer UNUSED(user_data))
+static void accel_store_cleared_cb(GtkCellRendererAccel *, gchar *, gpointer)
 {
 
 }
 
-static gboolean accel_remove_key_cb(GtkTreeModel *model, GtkTreePath *UNUSED(path), GtkTreeIter *iter, gpointer data)
+static gboolean accel_remove_key_cb(GtkTreeModel *model, GtkTreePath *, GtkTreeIter *iter, gpointer data)
 {
        auto accel1 = static_cast<gchar *>(data);
        gchar *accel2;
@@ -1687,13 +1703,14 @@ static gboolean accel_remove_key_cb(GtkTreeModel *model, GtkTreePath *UNUSED(pat
 }
 
 
-static void accel_store_edited_cb(GtkCellRendererAccel *UNUSED(accel), gchar *path_string, guint accel_key, GdkModifierType accel_mods, guint UNUSED(hardware_keycode), gpointer UNUSED(user_data))
+static void accel_store_edited_cb(GtkCellRendererAccel *, gchar *path_string, guint accel_key, GdkModifierType accel_mods, guint, gpointer)
 {
-       auto model = (GtkTreeModel *)accel_store;
+       auto model = reinterpret_cast<GtkTreeModel *>(accel_store);
        GtkTreeIter iter;
        gchar *acc;
        gchar *accel_path;
-       GtkAccelKey old_key, key;
+       GtkAccelKey old_key;
+       GtkAccelKey key;
        GtkTreePath *path = gtk_tree_path_new_from_string(path_string);
 
        gtk_tree_model_get_iter(model, &iter, path);
@@ -1736,22 +1753,23 @@ static gboolean accel_default_scroll(GtkTreeView *data)
        return(G_SOURCE_REMOVE);
 }
 
-static void accel_default_cb(GtkWidget *UNUSED(widget), gpointer data)
+static void accel_default_cb(GtkWidget *, gpointer data)
 {
        accel_store_populate();
 
-       g_idle_add((GSourceFunc)accel_default_scroll, data);
+       g_idle_add(reinterpret_cast<GSourceFunc>(accel_default_scroll), data);
 }
 
-void accel_clear_selection(GtkTreeModel *UNUSED(model), GtkTreePath *UNUSED(path), GtkTreeIter *iter, gpointer UNUSED(data))
+void accel_clear_selection(GtkTreeModel *, GtkTreePath *, GtkTreeIter *iter, gpointer)
 {
        gtk_tree_store_set(accel_store, iter, AE_KEY, "", -1);
 }
 
-void accel_reset_selection(GtkTreeModel *model, GtkTreePath *UNUSED(path), GtkTreeIter *iter, gpointer UNUSED(data))
+void accel_reset_selection(GtkTreeModel *model, GtkTreePath *, GtkTreeIter *iter, gpointer)
 {
        GtkAccelKey key;
-       gchar *accel_path, *accel;
+       gchar *accel_path;
+       gchar *accel;
 
        gtk_tree_model_get(model, iter, AE_ACCEL, &accel_path, -1);
        gtk_accel_map_lookup_entry(accel_path, &key);
@@ -1764,22 +1782,22 @@ void accel_reset_selection(GtkTreeModel *model, GtkTreePath *UNUSED(path), GtkTr
        g_free(accel);
 }
 
-static void accel_clear_cb(GtkWidget *UNUSED(widget), gpointer data)
+static void accel_clear_cb(GtkWidget *, gpointer data)
 {
        GtkTreeSelection *selection;
 
        if (!accel_store) return;
        selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(data));
-       gtk_tree_selection_selected_foreach(selection, &accel_clear_selection, NULL);
+       gtk_tree_selection_selected_foreach(selection, &accel_clear_selection, nullptr);
 }
 
-static void accel_reset_cb(GtkWidget *UNUSED(widget), gpointer data)
+static void accel_reset_cb(GtkWidget *, gpointer data)
 {
        GtkTreeSelection *selection;
 
        if (!accel_store) return;
        selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(data));
-       gtk_tree_selection_selected_foreach(selection, &accel_reset_selection, NULL);
+       gtk_tree_selection_selected_foreach(selection, &accel_reset_selection, nullptr);
 }
 
 
@@ -1791,7 +1809,7 @@ static GtkWidget *scrolled_notebook_page(GtkWidget *notebook, const gchar *title
        GtkWidget *scrolled;
        GtkWidget *viewport;
 
-       scrolled = gtk_scrolled_window_new(NULL, NULL);
+       scrolled = gq_gtk_scrolled_window_new(nullptr, nullptr);
        gtk_container_set_border_width(GTK_CONTAINER(scrolled), PREF_PAD_BORDER);
        gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled),
                                       GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
@@ -1799,19 +1817,19 @@ static GtkWidget *scrolled_notebook_page(GtkWidget *notebook, const gchar *title
        gtk_notebook_append_page(GTK_NOTEBOOK(notebook), scrolled, label);
        gtk_widget_show(scrolled);
 
-       viewport = gtk_viewport_new(NULL, NULL);
+       viewport = gtk_viewport_new(nullptr, nullptr);
        gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
-       gtk_container_add(GTK_CONTAINER(scrolled), viewport);
+       gq_gtk_container_add(GTK_WIDGET(scrolled), viewport);
        gtk_widget_show(viewport);
 
        vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
-       gtk_container_add(GTK_CONTAINER(viewport), vbox);
+       gq_gtk_container_add(GTK_WIDGET(viewport), vbox);
        gtk_widget_show(vbox);
 
        return vbox;
 }
 
-static void cache_standard_cb(GtkWidget *widget, gpointer UNUSED(data))
+static void cache_standard_cb(GtkWidget *widget, gpointer)
 {
        if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)))
                {
@@ -1820,7 +1838,7 @@ static void cache_standard_cb(GtkWidget *widget, gpointer UNUSED(data))
                }
 }
 
-static void cache_geeqie_cb(GtkWidget *widget, gpointer UNUSED(data))
+static void cache_geeqie_cb(GtkWidget *widget, gpointer)
 {
        if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)))
                {
@@ -1829,7 +1847,7 @@ static void cache_geeqie_cb(GtkWidget *widget, gpointer UNUSED(data))
                }
 }
 
-static void cache_local_cb(GtkWidget *widget, gpointer UNUSED(data))
+static void cache_local_cb(GtkWidget *widget, gpointer)
 {
        if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)))
                {
@@ -1838,61 +1856,58 @@ static void cache_local_cb(GtkWidget *widget, gpointer UNUSED(data))
                }
 }
 
-static void help_search_engine_entry_icon_cb(GtkEntry *UNUSED(entry), GtkEntryIconPosition pos,
-                                                                       GdkEvent *UNUSED(event), gpointer userdata)
+static void help_search_engine_entry_icon_cb(GtkEntry *, GtkEntryIconPosition pos, GdkEvent *, gpointer userdata)
 {
        if (pos == GTK_ENTRY_ICON_PRIMARY)
                {
-               gtk_entry_set_text(GTK_ENTRY(userdata), HELP_SEARCH_ENGINE);
+               gq_gtk_entry_set_text(GTK_ENTRY(userdata), HELP_SEARCH_ENGINE);
                }
        else
                {
-               gtk_entry_set_text(GTK_ENTRY(userdata), "");
+               gq_gtk_entry_set_text(GTK_ENTRY(userdata), "");
                }
 }
 
-static void star_rating_star_icon_cb(GtkEntry *UNUSED(entry), GtkEntryIconPosition pos,
-                                                                       GdkEvent *UNUSED(event), gpointer userdata)
+static void star_rating_star_icon_cb(GtkEntry *, GtkEntryIconPosition pos, GdkEvent *, gpointer userdata)
 {
        gchar *rating_symbol;
 
        if (pos == GTK_ENTRY_ICON_PRIMARY)
                {
                rating_symbol = g_strdup_printf("U+%X", STAR_RATING_STAR);
-               gtk_entry_set_text(GTK_ENTRY(userdata), rating_symbol);
+               gq_gtk_entry_set_text(GTK_ENTRY(userdata), rating_symbol);
                g_free(rating_symbol);
                }
        else
                {
-               gtk_entry_set_text(GTK_ENTRY(userdata), "U+");
+               gq_gtk_entry_set_text(GTK_ENTRY(userdata), "U+");
                gtk_widget_grab_focus(GTK_WIDGET(userdata));
                gtk_editable_select_region(GTK_EDITABLE(userdata), 2, 2);
                }
 }
 
-static void star_rating_rejected_icon_cb(GtkEntry *UNUSED(entry), GtkEntryIconPosition pos,
-                                                                       GdkEvent *UNUSED(event), gpointer userdata)
+static void star_rating_rejected_icon_cb(GtkEntry *, GtkEntryIconPosition pos, GdkEvent *, gpointer userdata)
 {
        gchar *rating_symbol;
 
        if (pos == GTK_ENTRY_ICON_PRIMARY)
                {
                rating_symbol = g_strdup_printf("U+%X", STAR_RATING_REJECTED);
-               gtk_entry_set_text(GTK_ENTRY(userdata), rating_symbol);
+               gq_gtk_entry_set_text(GTK_ENTRY(userdata), rating_symbol);
                g_free(rating_symbol);
                }
        else
                {
-               gtk_entry_set_text(GTK_ENTRY(userdata), "U+");
+               gq_gtk_entry_set_text(GTK_ENTRY(userdata), "U+");
                gtk_widget_grab_focus(GTK_WIDGET(userdata));
                gtk_editable_select_region(GTK_EDITABLE(userdata), 2, 2);
                }
 }
 
-static guint star_rating_symbol_test(GtkWidget *UNUSED(widget), gpointer data)
+static guint star_rating_symbol_test(GtkWidget *, gpointer data)
 {
        auto hbox = static_cast<GtkContainer *>(data);
-       GString *str = g_string_new(NULL);
+       GString *str = g_string_new(nullptr);
        GtkEntry *hex_code_entry;
        gchar *hex_code_full;
        gchar **hex_code;
@@ -1902,18 +1917,18 @@ static guint star_rating_symbol_test(GtkWidget *UNUSED(widget), gpointer data)
        list = gtk_container_get_children(hbox);
 
        hex_code_entry = static_cast<GtkEntry *>(g_list_nth_data(list, 2));
-       hex_code_full = g_strdup(gtk_entry_get_text(hex_code_entry));
+       hex_code_full = g_strdup(gq_gtk_entry_get_text(hex_code_entry));
 
        hex_code = g_strsplit(hex_code_full, "+", 2);
        if (hex_code[0] && hex_code[1])
                {
-               hex_value = strtoull(hex_code[1], NULL, 16);
+               hex_value = strtoull(hex_code[1], nullptr, 16);
                }
        if (!hex_value || hex_value > 0x10FFFF)
                {
                hex_value = 0x003F; // Unicode 'Question Mark'
                }
-       str = g_string_append_unichar(str, (gunichar)hex_value);
+       str = g_string_append_unichar(str, static_cast<gunichar>(hex_value));
        gtk_label_set_text(static_cast<GtkLabel *>(g_list_nth_data(list, 1)), str->str);
 
        g_strfreev(hex_code);
@@ -1941,8 +1956,7 @@ static void star_rating_rejected_test_cb(GtkWidget *widget, gpointer data)
 
 /* general options tab */
 static void timezone_database_install_cb(GtkWidget *widget, gpointer data);
-typedef struct _TZData TZData;
-struct _TZData
+struct TZData
 {
        GenericDialog *gd;
        GCancellable *cancellable;
@@ -1964,7 +1978,9 @@ static void config_tab_general(GtkWidget *notebook)
        GtkWidget *ct_button;
        GtkWidget *table;
        GtkWidget *spin;
-       gint hours, minutes, remainder;
+       gint hours;
+       gint minutes;
+       gint remainder;
        gdouble seconds;
        GtkWidget *star_rating_entry;
        GString *str;
@@ -1987,8 +2003,8 @@ static void config_tab_general(GtkWidget *notebook)
 
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
        pref_label_new(hbox, _("Custom size: "));
-       pref_spin_new_int(hbox, _("Width:"), NULL, 1, 512, 1, options->thumbnails.max_width, &c_options->thumbnails.max_width);
-       pref_spin_new_int(hbox, _("Height:"), NULL, 1, 512, 1, options->thumbnails.max_height, &c_options->thumbnails.max_height);
+       pref_spin_new_int(hbox, _("Width:"), nullptr, 1, 512, 1, options->thumbnails.max_width, &c_options->thumbnails.max_width);
+       pref_spin_new_int(hbox, _("Height:"), nullptr, 1, 512, 1, options->thumbnails.max_height, &c_options->thumbnails.max_height);
 
        ct_button = pref_checkbox_new_int(group, _("Cache thumbnails and sim. files"),
                                          options->thumbnails.enable_caching, &c_options->thumbnails.enable_caching);
@@ -2000,23 +2016,23 @@ static void config_tab_general(GtkWidget *notebook)
        c_options->thumbnails.cache_into_dirs = options->thumbnails.cache_into_dirs;
        group_frame = pref_frame_new(subgroup, TRUE, _("Use Geeqie thumbnail style and cache"),
                                                                                GTK_ORIENTATION_VERTICAL, PREF_PAD_GAP);
-       button = pref_radiobutton_new(group_frame, NULL,  get_thumbnails_cache_dir(),
+       button = pref_radiobutton_new(group_frame, nullptr,  get_thumbnails_cache_dir(),
                                                        !options->thumbnails.spec_standard && !options->thumbnails.cache_into_dirs,
-                                                       G_CALLBACK(cache_geeqie_cb), NULL);
+                                                       G_CALLBACK(cache_geeqie_cb), nullptr);
 
        group_frame = pref_frame_new(subgroup, TRUE,
                                                        _("Store thumbnails local to image folder (non-standard)"),
                                                        GTK_ORIENTATION_VERTICAL, PREF_PAD_GAP);
        pref_radiobutton_new(group_frame, button, "*/.thumbnails",
                                                        !options->thumbnails.spec_standard && options->thumbnails.cache_into_dirs,
-                                                       G_CALLBACK(cache_local_cb), NULL);
+                                                       G_CALLBACK(cache_local_cb), nullptr);
 
        group_frame = pref_frame_new(subgroup, TRUE,
                                                        _("Use standard thumbnail style and cache, shared with other applications"),
                                                        GTK_ORIENTATION_VERTICAL, PREF_PAD_GAP);
        pref_radiobutton_new(group_frame, button, get_thumbnails_standard_cache_dir(),
                                                        options->thumbnails.spec_standard && !options->thumbnails.cache_into_dirs,
-                                                       G_CALLBACK(cache_standard_cb), NULL);
+                                                       G_CALLBACK(cache_standard_cb), nullptr);
 
        pref_checkbox_new_int(group, _("Use EXIF thumbnails when available (EXIF thumbnails may be outdated)"),
                              options->thumbnails.use_exif, &c_options->thumbnails.use_exif);
@@ -2024,7 +2040,7 @@ static void config_tab_general(GtkWidget *notebook)
        pref_checkbox_new_int(group, _("Thumbnail color management"),
                                options->thumbnails.use_color_management, &c_options->thumbnails.use_color_management);
 
-       spin = pref_spin_new_int(group, _("Collection preview:"), NULL,
+       spin = pref_spin_new_int(group, _("Collection preview:"), nullptr,
                                 1, 999, 1,
                                 options->thumbnails.collection_preview, &c_options->thumbnails.collection_preview);
        gtk_widget_set_tooltip_text(spin, _("The maximum number of thumbnails shown in a Collection preview montage"));
@@ -2032,9 +2048,6 @@ static void config_tab_general(GtkWidget *notebook)
 #ifdef HAVE_FFMPEGTHUMBNAILER_METADATA
        pref_checkbox_new_int(group, _("Use embedded metadata in video files as thumbnails when available"),
                              options->thumbnails.use_ft_metadata, &c_options->thumbnails.use_ft_metadata);
-
-//     pref_checkbox_new_int(group, _("Ignore embedded metadata if size is too small"),
-//                           options->thumbnails.use_ft_metadata_small, &c_options->thumbnails.use_ft_metadata_small);
 #endif
 
        pref_spacer(group, PREF_PAD_GROUP);
@@ -2044,29 +2057,29 @@ static void config_tab_general(GtkWidget *notebook)
        c_options->star_rating.star = options->star_rating.star;
        c_options->star_rating.rejected = options->star_rating.rejected;
 
-       str = g_string_new(NULL);
+       str = g_string_new(nullptr);
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
        pref_label_new(hbox, _("Star character: "));
        str = g_string_append_unichar(str, options->star_rating.star);
        pref_label_new(hbox, g_strdup(str->str));
        rating_symbol = g_strdup_printf("U+%X", options->star_rating.star);
        star_rating_entry = gtk_entry_new();
-       gtk_entry_set_text(GTK_ENTRY(star_rating_entry), rating_symbol);
-       gtk_box_pack_start(GTK_BOX(hbox), star_rating_entry, FALSE, FALSE, 0);
+       gq_gtk_entry_set_text(GTK_ENTRY(star_rating_entry), rating_symbol);
+       gq_gtk_box_pack_start(GTK_BOX(hbox), star_rating_entry, FALSE, FALSE, 0);
        gtk_entry_set_width_chars(GTK_ENTRY(star_rating_entry), 15);
        gtk_widget_show(star_rating_entry);
-       button = pref_button_new(NULL, NULL, _("Set"), FALSE,
+       button = pref_button_new(nullptr, nullptr, _("Set"),
                                        G_CALLBACK(star_rating_star_test_cb), hbox);
        gtk_widget_set_tooltip_text(button, _("Display selected character"));
-       gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
        gtk_widget_set_tooltip_text(star_rating_entry, _("Hexadecimal representation of a Unicode character. A list of all Unicode characters may be found on the Internet."));
-       gtk_entry_set_icon_from_stock(GTK_ENTRY(star_rating_entry),
-                                               GTK_ENTRY_ICON_SECONDARY, GTK_STOCK_CLEAR);
+       gtk_entry_set_icon_from_icon_name(GTK_ENTRY(star_rating_entry),
+                                               GTK_ENTRY_ICON_SECONDARY, GQ_ICON_CLEAR);
        gtk_entry_set_icon_tooltip_text (GTK_ENTRY(star_rating_entry),
                                                GTK_ENTRY_ICON_SECONDARY, _("Clear"));
-       gtk_entry_set_icon_from_stock(GTK_ENTRY(star_rating_entry),
-                                               GTK_ENTRY_ICON_PRIMARY, GTK_STOCK_REVERT_TO_SAVED);
+       gtk_entry_set_icon_from_icon_name(GTK_ENTRY(star_rating_entry),
+                                               GTK_ENTRY_ICON_PRIMARY, GQ_ICON_REVERT);
        gtk_entry_set_icon_tooltip_text (GTK_ENTRY(star_rating_entry),
                                                GTK_ENTRY_ICON_PRIMARY, _("Default"));
        g_signal_connect(GTK_ENTRY(star_rating_entry), "icon-press",
@@ -2076,29 +2089,29 @@ static void config_tab_general(GtkWidget *notebook)
        g_string_free(str, TRUE);
        g_free(rating_symbol);
 
-       str = g_string_new(NULL);
+       str = g_string_new(nullptr);
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
        pref_label_new(hbox, _("Rejected character: "));
        str = g_string_append_unichar(str, options->star_rating.rejected);
        pref_label_new(hbox, g_strdup(str->str));
        rating_symbol = g_strdup_printf("U+%X", options->star_rating.rejected);
        star_rating_entry = gtk_entry_new();
-       gtk_entry_set_text(GTK_ENTRY(star_rating_entry), rating_symbol);
-       gtk_box_pack_start(GTK_BOX(hbox), star_rating_entry, FALSE, FALSE, 0);
+       gq_gtk_entry_set_text(GTK_ENTRY(star_rating_entry), rating_symbol);
+       gq_gtk_box_pack_start(GTK_BOX(hbox), star_rating_entry, FALSE, FALSE, 0);
        gtk_entry_set_width_chars(GTK_ENTRY(star_rating_entry), 15);
        gtk_widget_show(star_rating_entry);
-       button = pref_button_new(NULL, NULL, _("Set"), FALSE,
+       button = pref_button_new(nullptr, nullptr, _("Set"),
                                        G_CALLBACK(star_rating_rejected_test_cb), hbox);
        gtk_widget_set_tooltip_text(button, _("Display selected character"));
-       gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
        gtk_widget_set_tooltip_text(star_rating_entry, _("Hexadecimal representation of a Unicode character. A list of all Unicode characters may be found on the Internet."));
-       gtk_entry_set_icon_from_stock(GTK_ENTRY(star_rating_entry),
-                                               GTK_ENTRY_ICON_SECONDARY, GTK_STOCK_CLEAR);
+       gtk_entry_set_icon_from_icon_name(GTK_ENTRY(star_rating_entry),
+                                               GTK_ENTRY_ICON_SECONDARY, GQ_ICON_CLEAR);
        gtk_entry_set_icon_tooltip_text (GTK_ENTRY(star_rating_entry),
                                                GTK_ENTRY_ICON_SECONDARY, _("Clear"));
-       gtk_entry_set_icon_from_stock(GTK_ENTRY(star_rating_entry),
-                                               GTK_ENTRY_ICON_PRIMARY, GTK_STOCK_REVERT_TO_SAVED);
+       gtk_entry_set_icon_from_icon_name(GTK_ENTRY(star_rating_entry),
+                                               GTK_ENTRY_ICON_PRIMARY, GQ_ICON_REVERT);
        gtk_entry_set_icon_tooltip_text (GTK_ENTRY(star_rating_entry),
                                                GTK_ENTRY_ICON_PRIMARY, _("Default"));
        g_signal_connect(GTK_ENTRY(star_rating_entry), "icon-press",
@@ -2116,25 +2129,25 @@ static void config_tab_general(GtkWidget *notebook)
        hours = options->slideshow.delay / (3600 * SLIDESHOW_SUBSECOND_PRECISION);
        remainder = options->slideshow.delay % (3600 * SLIDESHOW_SUBSECOND_PRECISION);
        minutes = remainder / (60 * SLIDESHOW_SUBSECOND_PRECISION);
-       seconds = (gdouble)(remainder % (60 * SLIDESHOW_SUBSECOND_PRECISION)) /
+       seconds = static_cast<gdouble>(remainder % (60 * SLIDESHOW_SUBSECOND_PRECISION)) /
                                                                                        SLIDESHOW_SUBSECOND_PRECISION;
 
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
 
-       spin = pref_spin_new(hbox, _("Delay between image change hrs:mins:secs.dec"), NULL,
+       spin = pref_spin_new(hbox, _("Delay between image change hrs:mins:secs.dec"), nullptr,
                                                                                0, 23, 1.0, 0,
                                                                                options->slideshow.delay ? hours : 0.0,
-                                                                               G_CALLBACK(slideshow_delay_hours_cb), NULL);
+                                                                               G_CALLBACK(slideshow_delay_hours_cb), nullptr);
        gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(spin), GTK_UPDATE_ALWAYS);
-       spin = pref_spin_new(hbox, ":" , NULL,
+       spin = pref_spin_new(hbox, ":" , nullptr,
                                                                                0, 59, 1.0, 0,
                                                                                options->slideshow.delay ? minutes: 0.0,
-                                                                               G_CALLBACK(slideshow_delay_minutes_cb), NULL);
+                                                                               G_CALLBACK(slideshow_delay_minutes_cb), nullptr);
        gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(spin), GTK_UPDATE_ALWAYS);
-       spin = pref_spin_new(hbox, ":", NULL,
+       spin = pref_spin_new(hbox, ":", nullptr,
                                                                                SLIDESHOW_MIN_SECONDS, 59, 1.0, 1,
                                                                                options->slideshow.delay ? seconds : 10.0,
-                                                                               G_CALLBACK(slideshow_delay_seconds_cb), NULL);
+                                                                               G_CALLBACK(slideshow_delay_seconds_cb), nullptr);
        gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(spin), GTK_UPDATE_ALWAYS);
 
        pref_checkbox_new_int(group, _("Random"), options->slideshow.random, &c_options->slideshow.random);
@@ -2144,7 +2157,7 @@ static void config_tab_general(GtkWidget *notebook)
 
        group = pref_group_new(vbox, FALSE, _("Image loading and caching"), GTK_ORIENTATION_VERTICAL);
 
-       pref_spin_new_int(group, _("Decoded image cache size (MiB):"), NULL,
+       pref_spin_new_int(group, _("Decoded image cache size (MiB):"), nullptr,
                          0, 99999, 1, options->image.image_cache_max, &c_options->image.image_cache_max);
        pref_checkbox_new_int(group, _("Preload next image"),
                              options->image.enable_read_ahead, &c_options->image.enable_read_ahead);
@@ -2155,11 +2168,33 @@ static void config_tab_general(GtkWidget *notebook)
 
        pref_spacer(group, PREF_PAD_GROUP);
 
-       group = pref_group_new(vbox, FALSE, _("Expand menu and toolbar"), GTK_ORIENTATION_VERTICAL);
+       group = pref_group_new(vbox, FALSE, _("Menu style"), GTK_ORIENTATION_VERTICAL);
+
+       pref_checkbox_new_int(group, _("☰ style menu button (NOTE! Geeqie must be restarted for change to take effect)"),
+                               options->hamburger_menu, &c_options->hamburger_menu);
+       gtk_widget_set_tooltip_text(group, _("Use a ☰ style menu button instead of the classic style across the top of the frame"));
+
+       pref_spacer(group, PREF_PAD_GROUP);
 
-       pref_checkbox_new_int(group, _("Expand menu and toolbar (NOTE! Geeqie must be restarted for change to take effect)"),
+       group = pref_group_new(vbox, FALSE, _("Expand toolbar"), GTK_ORIENTATION_VERTICAL);
+
+       pref_checkbox_new_int(group, _("Expand menu/toolbar (NOTE! Geeqie must be restarted for change to take effect)"),
                                options->expand_menu_toolbar, &c_options->expand_menu_toolbar);
-       gtk_widget_set_tooltip_text(group, _("Expand the menu and toolbar to the full width of the window"));
+       gtk_widget_set_tooltip_text(group, _("Expand the menu/toolbar to the full width of the window"));
+
+       pref_spacer(group, PREF_PAD_GROUP);
+
+       group = pref_group_new(vbox, FALSE, _("Hide Selectable Bars"), GTK_ORIENTATION_VERTICAL);
+
+       pref_checkbox_new_int(group, _("Menu bar"),
+                               options->selectable_bars.menu_bar, &c_options->selectable_bars.menu_bar);
+
+       pref_checkbox_new_int(group, _("Tool bar"),
+                               options->selectable_bars.tool_bar, &c_options->selectable_bars.tool_bar);
+
+       pref_checkbox_new_int(group, _("Status bar"),
+                               options->selectable_bars.status_bar, &c_options->selectable_bars.status_bar);
+       gtk_widget_set_tooltip_text(group, _("The Hide Selectable Bars menu item (default keystroke is control-backtick) will toggle the display of the bars selected here"));
 
        pref_spacer(group, PREF_PAD_GROUP);
 
@@ -2175,10 +2210,10 @@ static void config_tab_general(GtkWidget *notebook)
 
 
        net_mon = g_network_monitor_get_default();
-       tz_org = g_network_address_parse_uri(TIMEZONE_DATABASE_WEB, 80, NULL);
+       tz_org = g_network_address_parse_uri(TIMEZONE_DATABASE_WEB, 80, nullptr);
        if (tz_org)
                {
-               internet_available = g_network_monitor_can_reach(net_mon, tz_org, NULL, NULL);
+               internet_available = g_network_monitor_can_reach(net_mon, tz_org, nullptr, nullptr);
                g_object_unref(tz_org);
                }
 
@@ -2200,11 +2235,11 @@ static void config_tab_general(GtkWidget *notebook)
 
        if (isfile(tz->timezone_database_user))
                {
-               button = pref_button_new(GTK_WIDGET(hbox), NULL, _("Update"), FALSE, G_CALLBACK(timezone_database_install_cb), tz);
+               button = pref_button_new(GTK_WIDGET(hbox), nullptr, _("Update"), G_CALLBACK(timezone_database_install_cb), tz);
                }
        else
                {
-               button = pref_button_new(GTK_WIDGET(hbox), NULL, _("Install"), FALSE, G_CALLBACK(timezone_database_install_cb), tz);
+               button = pref_button_new(GTK_WIDGET(hbox), nullptr, _("Install"), G_CALLBACK(timezone_database_install_cb), tz);
                }
 
        download_locn = g_strconcat(_("Download database from: "), TIMEZONE_DATABASE_WEB, NULL);
@@ -2226,18 +2261,18 @@ static void config_tab_general(GtkWidget *notebook)
        group = pref_group_new(vbox, FALSE, _("On-line help search engine"), GTK_ORIENTATION_VERTICAL);
 
        help_search_engine_entry = gtk_entry_new();
-       gtk_entry_set_text(GTK_ENTRY(help_search_engine_entry), options->help_search_engine);
-       gtk_box_pack_start(GTK_BOX(group), help_search_engine_entry, FALSE, FALSE, 0);
+       gq_gtk_entry_set_text(GTK_ENTRY(help_search_engine_entry), options->help_search_engine);
+       gq_gtk_box_pack_start(GTK_BOX(group), help_search_engine_entry, FALSE, FALSE, 0);
        gtk_widget_show(help_search_engine_entry);
 
        gtk_widget_set_tooltip_text(help_search_engine_entry, _("The format varies between search engines, e.g the format may be:\nhttps://www.search_engine.com/search?q=site:geeqie.org/help\nhttps://www.search_engine.com/?q=site:geeqie.org/help"));
 
-       gtk_entry_set_icon_from_stock(GTK_ENTRY(help_search_engine_entry),
-                                               GTK_ENTRY_ICON_SECONDARY, GTK_STOCK_CLEAR);
+       gtk_entry_set_icon_from_icon_name(GTK_ENTRY(help_search_engine_entry),
+                                               GTK_ENTRY_ICON_SECONDARY, GQ_ICON_CLEAR);
        gtk_entry_set_icon_tooltip_text (GTK_ENTRY(help_search_engine_entry),
                                                GTK_ENTRY_ICON_SECONDARY, _("Clear"));
-       gtk_entry_set_icon_from_stock(GTK_ENTRY(help_search_engine_entry),
-                                               GTK_ENTRY_ICON_PRIMARY, GTK_STOCK_REVERT_TO_SAVED);
+       gtk_entry_set_icon_from_icon_name(GTK_ENTRY(help_search_engine_entry),
+                                               GTK_ENTRY_ICON_PRIMARY, GQ_ICON_REVERT);
        gtk_entry_set_icon_tooltip_text (GTK_ENTRY(help_search_engine_entry),
                                                GTK_ENTRY_ICON_PRIMARY, _("Default"));
        g_signal_connect(GTK_ENTRY(help_search_engine_entry), "icon-press",
@@ -2255,9 +2290,6 @@ static void config_tab_image(GtkWidget *notebook)
        GtkWidget *enlargement_button;
        GtkWidget *table;
        GtkWidget *spin;
-//~ #ifdef HAVE_CLUTTER
-       //~ GtkWidget *gpu_accel;
-//~ #endif
 
        vbox = scrolled_notebook_page(notebook, _("Image"));
 
@@ -2265,31 +2297,14 @@ static void config_tab_image(GtkWidget *notebook)
 
        table = pref_table_new(group, 2, 1, FALSE, FALSE);
        add_quality_menu(table, 0, 0, _("Quality:"), options->image.zoom_quality, &c_options->image.zoom_quality);
-       //~ if (options->image.use_clutter_renderer && !options->disable_gpu)
-               //~ {
-               //~ gtk_widget_set_sensitive(table, FALSE);
-               //~ }
-
-//~ #ifdef HAVE_CLUTTER
-       //~ gpu_accel = pref_checkbox_new_int(group, _("Use GPU acceleration via Clutter library (Requires restart)"),
-                             //~ options->image.use_clutter_renderer, &c_options->image.use_clutter_renderer);
-       //~ if (options->disable_gpu && !options->override_disable_gpu)
-               //~ {
-               //~ gtk_widget_set_sensitive(gpu_accel, FALSE);
-               //~ }
-//~ #endif
 
        pref_checkbox_new_int(group, _("Two pass rendering (apply HQ zoom and color correction in second pass)"),
                              options->image.zoom_2pass, &c_options->image.zoom_2pass);
-       //~ if (options->image.use_clutter_renderer && !options->disable_gpu)
-               //~ {
-               //~ gtk_widget_set_sensitive(two_pass, FALSE);
-               //~ }
 
        c_options->image.zoom_increment = options->image.zoom_increment;
-       spin = pref_spin_new(group, _("Zoom increment:"), NULL,
-                            0.01, 4.0, 0.01, 2, (gdouble)options->image.zoom_increment / 100.0,
-                            G_CALLBACK(zoom_increment_cb), NULL);
+       spin = pref_spin_new(group, _("Zoom increment:"), nullptr,
+                            0.01, 4.0, 0.01, 2, static_cast<gdouble>(options->image.zoom_increment) / 100.0,
+                            G_CALLBACK(zoom_increment_cb), nullptr);
        gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(spin), GTK_UPDATE_ALWAYS);
 
        c_options->image.zoom_style = options->image.zoom_style;
@@ -2301,7 +2316,7 @@ static void config_tab_image(GtkWidget *notebook)
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
        enlargement_button = pref_checkbox_new_int(hbox, _("Allow enlargement of image (max. size in %)"),
                              options->image.zoom_to_fit_allow_expand, &c_options->image.zoom_to_fit_allow_expand);
-       spin = pref_spin_new_int(hbox, NULL, NULL,
+       spin = pref_spin_new_int(hbox, nullptr, nullptr,
                                 100, 999, 1,
                                 options->image.max_enlargement_size, &c_options->image.max_enlargement_size);
        pref_checkbox_link_sensitivity(enlargement_button, spin);
@@ -2310,14 +2325,13 @@ static void config_tab_image(GtkWidget *notebook)
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
        ct_button = pref_checkbox_new_int(hbox, _("Virtual window size (% of actual window):"),
                                          options->image.limit_autofit_size, &c_options->image.limit_autofit_size);
-       spin = pref_spin_new_int(hbox, NULL, NULL,
+       spin = pref_spin_new_int(hbox, nullptr, nullptr,
                                 10, 150, 1,
                                 options->image.max_autofit_size, &c_options->image.max_autofit_size);
        pref_checkbox_link_sensitivity(ct_button, spin);
        gtk_widget_set_tooltip_text(GTK_WIDGET(hbox), _("This value will set the virtual size of the window when \"Fit image to window\" is set. Instead of using the actual size of the window, the specified percentage of the window will be used. It allows one to keep a border around the image (values lower than 100%) or to auto zoom the image (values greater than 100%). It affects fullscreen mode too."));
 
        group = pref_group_new(vbox, FALSE, _("Tile size"), GTK_ORIENTATION_VERTICAL);
-       //~ gtk_widget_set_sensitive(group, !options->image.use_clutter_renderer);
 
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
        spin = pref_spin_new_int(hbox, _("Pixels"), _("(Requires restart)"),
@@ -2350,9 +2364,9 @@ static void config_tab_image(GtkWidget *notebook)
 
 /* windows tab */
 
-static void save_default_window_layout_cb(GtkWidget *UNUSED(widget), gpointer UNUSED(data))
+static void save_default_window_layout_cb(GtkWidget *, gpointer)
 {
-       LayoutWindow *lw = NULL;
+       LayoutWindow *lw = nullptr;
        gchar *default_path;
        gchar *tmp_id;
 
@@ -2360,7 +2374,7 @@ static void save_default_window_layout_cb(GtkWidget *UNUSED(widget), gpointer UN
        layout_valid(&lw);
 
        tmp_id = lw->options.id;
-       lw->options.id = g_strdup("lw_default");
+       lw->options.id = g_strdup("");
 
        default_path = g_build_filename(get_rc_dir(), DEFAULT_WINDOW_LAYOUT, NULL);
        save_default_layout_options_to_file(default_path, options, lw);
@@ -2378,7 +2392,7 @@ static gboolean popover_cb(gpointer data)
        return FALSE;
 }
 
-static void default_layout_changed_cb(GtkWidget *UNUSED(button), GtkPopover *popover)
+static void default_layout_changed_cb(GtkWidget *, GtkPopover *popover)
 {
        gtk_popover_popup(popover);
 
@@ -2391,7 +2405,7 @@ static GtkWidget *create_popover(GtkWidget *parent, GtkWidget *child, GtkPositio
 
        popover = gtk_popover_new(parent);
        gtk_popover_set_position(GTK_POPOVER (popover), pos);
-       gtk_container_add (GTK_CONTAINER(popover), child);
+       gq_gtk_container_add(GTK_WIDGET(popover), child);
        gtk_container_set_border_width(GTK_CONTAINER (popover), 6);
        gtk_widget_show (child);
 
@@ -2405,6 +2419,7 @@ static void config_tab_windows(GtkWidget *notebook)
        GtkWidget *group;
        GtkWidget *subgroup;
        GtkWidget *button;
+       GtkWidget *checkbox;
        GtkWidget *ct_button;
        GtkWidget *spin;
 
@@ -2415,13 +2430,13 @@ static void config_tab_windows(GtkWidget *notebook)
        ct_button = pref_checkbox_new_int(group, _("Remember session"),
                                          options->save_window_positions, &c_options->save_window_positions);
 
-       button = pref_checkbox_new_int(group, _("Use saved window positions also for new windows"),
+       checkbox = pref_checkbox_new_int(group, _("Use saved window positions also for new windows"),
                                       options->use_saved_window_positions_for_new_windows, &c_options->use_saved_window_positions_for_new_windows);
-       pref_checkbox_link_sensitivity(ct_button, button);
+       pref_checkbox_link_sensitivity(ct_button, checkbox);
 
-       button = pref_checkbox_new_int(group, _("Remember window workspace"),
+       checkbox = pref_checkbox_new_int(group, _("Remember window workspace"),
                              options->save_window_workspace, &c_options->save_window_workspace);
-       pref_checkbox_link_sensitivity(ct_button, button);
+       pref_checkbox_link_sensitivity(ct_button, checkbox);
 
        pref_checkbox_new_int(group, _("Remember tool state (float/hidden)"),
                              options->tools_restore_state, &c_options->tools_restore_state);
@@ -2434,7 +2449,7 @@ static void config_tab_windows(GtkWidget *notebook)
 
        subgroup = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
        pref_label_new(subgroup, _("Use current layout for default: "));
-       button = pref_button_new(subgroup, NULL, _("Set"), FALSE, G_CALLBACK(save_default_window_layout_cb), NULL);
+       button = pref_button_new(subgroup, nullptr, _("Set"), G_CALLBACK(save_default_window_layout_cb), nullptr);
 
        GtkWidget *popover;
 
@@ -2450,7 +2465,7 @@ static void config_tab_windows(GtkWidget *notebook)
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
        ct_button = pref_checkbox_new_int(hbox, _("Limit size when auto-sizing window (%):"),
                                          options->image.limit_window_size, &c_options->image.limit_window_size);
-       spin = pref_spin_new_int(hbox, NULL, NULL,
+       spin = pref_spin_new_int(hbox, nullptr, nullptr,
                                 10, 150, 1,
                                 options->image.max_window_size, &c_options->image.max_window_size);
        pref_checkbox_link_sensitivity(ct_button, spin);
@@ -2460,7 +2475,7 @@ static void config_tab_windows(GtkWidget *notebook)
        c_options->fullscreen.screen = options->fullscreen.screen;
        c_options->fullscreen.above = options->fullscreen.above;
        hbox = fullscreen_prefs_selection_new(_("Location:"), &c_options->fullscreen.screen, &c_options->fullscreen.above);
-       gtk_box_pack_start(GTK_BOX(group), hbox, FALSE, FALSE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(group), hbox, FALSE, FALSE, 0);
        gtk_widget_show(hbox);
 
        pref_checkbox_new_int(group, _("Smooth image flip"),
@@ -2469,7 +2484,9 @@ static void config_tab_windows(GtkWidget *notebook)
                              options->fullscreen.disable_saver, &c_options->fullscreen.disable_saver);
 }
 
-#define PRE_FORMATTED_COLUMNS 5
+enum {
+       PRE_FORMATTED_COLUMNS = 5
+};
 static void config_tab_osd(GtkWidget *notebook)
 {
        GtkWidget *hbox;
@@ -2493,7 +2510,7 @@ static void config_tab_osd(GtkWidget *notebook)
 
        scrolled_pre_formatted = osd_new(PRE_FORMATTED_COLUMNS, image_overlay_template_view);
        gtk_widget_set_size_request(scrolled_pre_formatted, 200, 150);
-       gtk_box_pack_start(GTK_BOX(subgroup), scrolled_pre_formatted, FALSE, FALSE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(subgroup), scrolled_pre_formatted, FALSE, FALSE, 0);
        gtk_widget_show(scrolled_pre_formatted);
        gtk_widget_show(subgroup);
 
@@ -2501,47 +2518,45 @@ static void config_tab_osd(GtkWidget *notebook)
 
        pref_label_new(group, _("Image overlay template"));
 
-       scrolled = gtk_scrolled_window_new(NULL, NULL);
+       scrolled = gq_gtk_scrolled_window_new(nullptr, nullptr);
        gtk_widget_set_size_request(scrolled, 200, 150);
-       gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
+       gq_gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
        gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled),
                                                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
-       gtk_box_pack_start(GTK_BOX(group), scrolled, TRUE, TRUE, 5);
+       gq_gtk_box_pack_start(GTK_BOX(group), scrolled, TRUE, TRUE, 5);
        gtk_widget_show(scrolled);
 
        gtk_widget_set_tooltip_markup(image_overlay_template_view,
                                        _("Extensive formatting options are shown in the Help file"));
 
-       gtk_container_add(GTK_CONTAINER(scrolled), image_overlay_template_view);
+       gq_gtk_container_add(GTK_WIDGET(scrolled), image_overlay_template_view);
        gtk_widget_show(image_overlay_template_view);
 
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_BUTTON_GAP);
 
-       button = pref_button_new(NULL, GTK_STOCK_SELECT_FONT, _("Font"), FALSE,
+       button = pref_button_new(nullptr, GQ_ICON_SELECT_FONT, _("Font"),
                                 G_CALLBACK(image_overlay_set_font_cb), notebook);
 
-       gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
 
-       button = pref_button_new(NULL, GTK_STOCK_COLOR_PICKER, _("Text"), FALSE,
-                                G_CALLBACK(image_overlay_set_text_colour_cb), NULL);
-       gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       button = pref_button_new(nullptr, GQ_ICON_SELECT_COLOR, _("Text"), G_CALLBACK(image_overlay_set_text_color_cb), nullptr);
+       gq_gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
 
-       button = pref_button_new(NULL, GTK_STOCK_COLOR_PICKER, _("Background"), FALSE,
-                                G_CALLBACK(image_overlay_set_background_colour_cb), NULL);
-       gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       button = pref_button_new(nullptr, GQ_ICON_SELECT_COLOR, _("Background"), G_CALLBACK(image_overlay_set_background_color_cb), nullptr);
+       gq_gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
-       image_overlay_set_text_colours();
+       image_overlay_set_text_colors();
 
-       button = pref_button_new(NULL, NULL, _("Defaults"), FALSE,
+       button = pref_button_new(nullptr, nullptr, _("Defaults"),
                                 G_CALLBACK(image_overlay_default_template_cb), image_overlay_template_view);
-       gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       gq_gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
 
-       button = pref_button_new(NULL, GTK_STOCK_HELP, NULL, FALSE,
-                                G_CALLBACK(image_overlay_help_cb), NULL);
-       gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       button = pref_button_new(nullptr, GQ_ICON_HELP, _("Help"),
+                                G_CALLBACK(image_overlay_help_cb), nullptr);
+       gq_gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
 
        buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(image_overlay_template_view));
@@ -2553,50 +2568,50 @@ static void config_tab_osd(GtkWidget *notebook)
 
        group = pref_group_new(vbox, FALSE, _("Exif, XMP or IPTC tags"), GTK_ORIENTATION_VERTICAL);
        hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
-       gtk_box_pack_start(GTK_BOX(group), hbox, FALSE, FALSE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(group), hbox, FALSE, FALSE, 0);
        gtk_widget_show(hbox);
        label = gtk_label_new(_("%Exif.Image.Orientation%"));
-       gtk_box_pack_start(GTK_BOX(hbox),label, FALSE,FALSE,0);
+       gq_gtk_box_pack_start(GTK_BOX(hbox),label, FALSE,FALSE,0);
        gtk_widget_show(label);
        pref_spacer(group,TRUE);
 
        group = pref_group_new(vbox, FALSE, _("Field separators"), GTK_ORIENTATION_VERTICAL);
        hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
-       gtk_box_pack_start(GTK_BOX(group), hbox, FALSE, FALSE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(group), hbox, FALSE, FALSE, 0);
        gtk_widget_show(hbox);
        label = gtk_label_new(_("Separator shown only if both fields are non-null:\n%formatted.ShutterSpeed%|%formatted.ISOSpeedRating%"));
-       gtk_box_pack_start(GTK_BOX(hbox),label, FALSE,FALSE,0);
+       gq_gtk_box_pack_start(GTK_BOX(hbox),label, FALSE,FALSE,0);
        gtk_widget_show(label);
        pref_spacer(group,TRUE);
 
        group = pref_group_new(vbox, FALSE, _("Field maximum length"), GTK_ORIENTATION_VERTICAL);
        hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
-       gtk_box_pack_start(GTK_BOX(group), hbox, FALSE, FALSE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(group), hbox, FALSE, FALSE, 0);
        gtk_widget_show(hbox);
        label = gtk_label_new(_("%path:39%"));
-       gtk_box_pack_start(GTK_BOX(hbox),label, FALSE,FALSE,0);
+       gq_gtk_box_pack_start(GTK_BOX(hbox),label, FALSE,FALSE,0);
        gtk_widget_show(label);
        pref_spacer(group,TRUE);
 
        group = pref_group_new(vbox, FALSE, _("Pre- and post- text"), GTK_ORIENTATION_VERTICAL);
        hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
-       gtk_box_pack_start(GTK_BOX(group), hbox, FALSE, FALSE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(group), hbox, FALSE, FALSE, 0);
        gtk_widget_show(hbox);
        label = gtk_label_new(_("Text shown only if the field is non-null:\n%formatted.Aperture:F no. * setting%\n %formatted.Aperture:10:F no. * setting%"));
-       gtk_box_pack_start(GTK_BOX(hbox),label, FALSE,FALSE,0);
+       gq_gtk_box_pack_start(GTK_BOX(hbox),label, FALSE,FALSE,0);
        gtk_widget_show(label);
        pref_spacer(group,TRUE);
 
        group = pref_group_new(vbox, FALSE, _("Pango markup"), GTK_ORIENTATION_VERTICAL);
        hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
-       gtk_box_pack_start(GTK_BOX(group), hbox, FALSE, FALSE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(group), hbox, FALSE, FALSE, 0);
        gtk_widget_show(hbox);
        label = gtk_label_new(_("<b>bold</b>\n<u>underline</u>\n<i>italic</i>\n<s>strikethrough</s>"));
-       gtk_box_pack_start(GTK_BOX(hbox),label, FALSE,FALSE,0);
+       gq_gtk_box_pack_start(GTK_BOX(hbox),label, FALSE,FALSE,0);
        gtk_widget_show(label);
 }
 
-static GtkTreeModel *create_class_model(void)
+static GtkTreeModel *create_class_model()
 {
        GtkListStore *model;
        GtkTreeIter iter;
@@ -2663,7 +2678,7 @@ static gint filter_table_sort_cb(GtkTreeModel *model, GtkTreeIter *a, GtkTreeIte
        return ret;
 }
 
-static gboolean search_function_cb(GtkTreeModel *model, gint UNUSED(column), const gchar *key, GtkTreeIter *iter, gpointer UNUSED(search_data))
+static gboolean search_function_cb(GtkTreeModel *model, gint, const gchar *key, GtkTreeIter *iter, gpointer)
 {
        FilterEntry *fe;
        gboolean ret = TRUE;
@@ -2700,10 +2715,7 @@ static void config_tab_files(GtkWidget *notebook)
                              options->file_filter.show_hidden_files, &c_options->file_filter.show_hidden_files);
        pref_checkbox_new_int(group, _("Show parent folder (..)"),
                              options->file_filter.show_parent_directory, &c_options->file_filter.show_parent_directory);
-       pref_checkbox_new_int(group, _("Case sensitive sort"),
-                             options->file_sort.case_sensitive, &c_options->file_sort.case_sensitive);
-       pref_checkbox_new_int(group, _("Natural sort order - Requires restart"),
-                                         options->file_sort.natural, &c_options->file_sort.natural);
+       pref_checkbox_new_int(group, _("Case sensitive sort (Search and Collection windows, and tab completion)"), options->file_sort.case_sensitive, &c_options->file_sort.case_sensitive);
        pref_checkbox_new_int(group, _("Disable file extension checks"),
                              options->file_filter.disable_file_extension_checks, &c_options->file_filter.disable_file_extension_checks);
 
@@ -2714,8 +2726,8 @@ static void config_tab_files(GtkWidget *notebook)
        group = pref_group_new(vbox, FALSE, _("Grouping sidecar extensions"), GTK_ORIENTATION_VERTICAL);
 
        sidecar_ext_entry = gtk_entry_new();
-       gtk_entry_set_text(GTK_ENTRY(sidecar_ext_entry), options->sidecar.ext);
-       gtk_box_pack_start(GTK_BOX(group), sidecar_ext_entry, FALSE, FALSE, 0);
+       gq_gtk_entry_set_text(GTK_ENTRY(sidecar_ext_entry), options->sidecar.ext);
+       gq_gtk_box_pack_start(GTK_BOX(group), sidecar_ext_entry, FALSE, FALSE, 0);
        gtk_widget_show(sidecar_ext_entry);
 
        group = pref_group_new(vbox, TRUE, _("File types"), GTK_ORIENTATION_VERTICAL);
@@ -2725,10 +2737,10 @@ static void config_tab_files(GtkWidget *notebook)
                         G_CALLBACK(filter_disable_cb), frame);
        gtk_widget_set_sensitive(frame, !options->file_filter.disable);
 
-       scrolled = gtk_scrolled_window_new(NULL, NULL);
-       gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
+       scrolled = gq_gtk_scrolled_window_new(nullptr, nullptr);
+       gq_gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
        gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled), GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
-       gtk_box_pack_start(GTK_BOX(group), scrolled, TRUE, TRUE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(group), scrolled, TRUE, TRUE, 0);
        gtk_widget_show(scrolled);
 
        filter_store = gtk_list_store_new(1, G_TYPE_POINTER);
@@ -2748,29 +2760,29 @@ static void config_tab_files(GtkWidget *notebook)
                         G_CALLBACK(filter_store_enable_cb), filter_store);
        gtk_tree_view_column_pack_start(column, renderer, FALSE);
        gtk_tree_view_column_set_cell_data_func(column, renderer, filter_set_func,
-                                               GINT_TO_POINTER(FE_ENABLE), NULL);
-       gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(filter_store), FILETYPES_COLUMN_ENABLED, filter_table_sort_cb, GINT_TO_POINTER(FILETYPES_COLUMN_ENABLED), NULL);
+                                               GINT_TO_POINTER(FE_ENABLE), nullptr);
+       gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(filter_store), FILETYPES_COLUMN_ENABLED, filter_table_sort_cb, GINT_TO_POINTER(FILETYPES_COLUMN_ENABLED), nullptr);
        gtk_tree_view_column_set_sort_column_id(column, FILETYPES_COLUMN_ENABLED);
        gtk_tree_view_append_column(GTK_TREE_VIEW(filter_view), column);
 
        column = gtk_tree_view_column_new();
        gtk_tree_view_column_set_title(column, _("Filter"));
        gtk_tree_view_column_set_resizable(column, TRUE);
-       gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(filter_store), FILETYPES_COLUMN_FILTER, filter_table_sort_cb, GINT_TO_POINTER(FILETYPES_COLUMN_FILTER), NULL);
+       gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(filter_store), FILETYPES_COLUMN_FILTER, filter_table_sort_cb, GINT_TO_POINTER(FILETYPES_COLUMN_FILTER), nullptr);
        gtk_tree_view_column_set_sort_column_id(column, FILETYPES_COLUMN_FILTER);
 
        renderer = gtk_cell_renderer_text_new();
        g_signal_connect(G_OBJECT(renderer), "edited",
                         G_CALLBACK(filter_store_ext_edit_cb), filter_store);
        gtk_tree_view_column_pack_start(column, renderer, TRUE);
-       g_object_set(G_OBJECT(renderer), "editable", (gboolean)TRUE, NULL);
+       g_object_set(G_OBJECT(renderer), "editable", static_cast<gboolean>TRUE, NULL);
        gtk_tree_view_column_set_cell_data_func(column, renderer, filter_set_func,
-                                               GINT_TO_POINTER(FE_EXTENSION), NULL);
+                                               GINT_TO_POINTER(FE_EXTENSION), nullptr);
        gtk_tree_view_append_column(GTK_TREE_VIEW(filter_view), column);
 
        gtk_tree_view_set_enable_search(GTK_TREE_VIEW(filter_view), TRUE);
        gtk_tree_view_set_search_column(GTK_TREE_VIEW(filter_view), FILETYPES_COLUMN_FILTER);
-       gtk_tree_view_set_search_equal_func(GTK_TREE_VIEW(filter_view), search_function_cb, NULL, NULL);
+       gtk_tree_view_set_search_equal_func(GTK_TREE_VIEW(filter_view), search_function_cb, nullptr, nullptr);
 
        column = gtk_tree_view_column_new();
        gtk_tree_view_column_set_title(column, _("Description"));
@@ -2781,19 +2793,19 @@ static void config_tab_files(GtkWidget *notebook)
        renderer = gtk_cell_renderer_text_new();
        g_signal_connect(G_OBJECT(renderer), "edited",
                         G_CALLBACK(filter_store_desc_edit_cb), filter_store);
-       g_object_set(G_OBJECT(renderer), "editable", (gboolean)TRUE, NULL);
+       g_object_set(G_OBJECT(renderer), "editable", static_cast<gboolean>TRUE, NULL);
        gtk_tree_view_column_pack_start(column, renderer, FALSE);
        gtk_tree_view_column_set_cell_data_func(column, renderer, filter_set_func,
-                                               GINT_TO_POINTER(FE_DESCRIPTION), NULL);
+                                               GINT_TO_POINTER(FE_DESCRIPTION), nullptr);
        gtk_tree_view_append_column(GTK_TREE_VIEW(filter_view), column);
-       gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(filter_store), FILETYPES_COLUMN_DESCRIPTION, filter_table_sort_cb, GINT_TO_POINTER(FILETYPES_COLUMN_DESCRIPTION), NULL);
+       gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(filter_store), FILETYPES_COLUMN_DESCRIPTION, filter_table_sort_cb, GINT_TO_POINTER(FILETYPES_COLUMN_DESCRIPTION), nullptr);
        gtk_tree_view_column_set_sort_column_id(column, FILETYPES_COLUMN_DESCRIPTION);
 
        column = gtk_tree_view_column_new();
        gtk_tree_view_column_set_title(column, _("Class"));
        gtk_tree_view_column_set_resizable(column, TRUE);
        renderer = gtk_cell_renderer_combo_new();
-       g_object_set(G_OBJECT(renderer), "editable", (gboolean)TRUE,
+       g_object_set(G_OBJECT(renderer), "editable", static_cast<gboolean>TRUE,
                                         "model", create_class_model(),
                                         "text-column", 0,
                                         "has-entry", FALSE,
@@ -2803,9 +2815,9 @@ static void config_tab_files(GtkWidget *notebook)
                         G_CALLBACK(filter_store_class_edit_cb), filter_store);
        gtk_tree_view_column_pack_start(column, renderer, TRUE);
        gtk_tree_view_column_set_cell_data_func(column, renderer, filter_set_func,
-                                               GINT_TO_POINTER(FE_CLASS), NULL);
+                                               GINT_TO_POINTER(FE_CLASS), nullptr);
        gtk_tree_view_append_column(GTK_TREE_VIEW(filter_view), column);
-       gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(filter_store), FILETYPES_COLUMN_CLASS, filter_table_sort_cb, GINT_TO_POINTER(FILETYPES_COLUMN_CLASS), NULL);
+       gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(filter_store), FILETYPES_COLUMN_CLASS, filter_table_sort_cb, GINT_TO_POINTER(FILETYPES_COLUMN_CLASS), nullptr);
        gtk_tree_view_column_set_sort_column_id(column, FILETYPES_COLUMN_CLASS);
 
        column = gtk_tree_view_column_new();
@@ -2816,9 +2828,9 @@ static void config_tab_files(GtkWidget *notebook)
                         G_CALLBACK(filter_store_writable_cb), filter_store);
        gtk_tree_view_column_pack_start(column, renderer, FALSE);
        gtk_tree_view_column_set_cell_data_func(column, renderer, filter_set_func,
-                                               GINT_TO_POINTER(FE_WRITABLE), NULL);
+                                               GINT_TO_POINTER(FE_WRITABLE), nullptr);
        gtk_tree_view_append_column(GTK_TREE_VIEW(filter_view), column);
-       gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(filter_store), FILETYPES_COLUMN_WRITABLE, filter_table_sort_cb, GINT_TO_POINTER(FILETYPES_COLUMN_WRITABLE), NULL);
+       gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(filter_store), FILETYPES_COLUMN_WRITABLE, filter_table_sort_cb, GINT_TO_POINTER(FILETYPES_COLUMN_WRITABLE), nullptr);
        gtk_tree_view_column_set_sort_column_id(column, FILETYPES_COLUMN_WRITABLE);
 
        column = gtk_tree_view_column_new();
@@ -2829,30 +2841,30 @@ static void config_tab_files(GtkWidget *notebook)
                         G_CALLBACK(filter_store_sidecar_cb), filter_store);
        gtk_tree_view_column_pack_start(column, renderer, FALSE);
        gtk_tree_view_column_set_cell_data_func(column, renderer, filter_set_func,
-                                               GINT_TO_POINTER(FE_ALLOW_SIDECAR), NULL);
+                                               GINT_TO_POINTER(FE_ALLOW_SIDECAR), nullptr);
        gtk_tree_view_append_column(GTK_TREE_VIEW(filter_view), column);
-       gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(filter_store), FILETYPES_COLUMN_SIDECAR, filter_table_sort_cb, GINT_TO_POINTER(FILETYPES_COLUMN_SIDECAR), NULL);
+       gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(filter_store), FILETYPES_COLUMN_SIDECAR, filter_table_sort_cb, GINT_TO_POINTER(FILETYPES_COLUMN_SIDECAR), nullptr);
        gtk_tree_view_column_set_sort_column_id(column, FILETYPES_COLUMN_SIDECAR);
 
        filter_store_populate();
-       gtk_container_add(GTK_CONTAINER(scrolled), filter_view);
+       gq_gtk_container_add(GTK_WIDGET(scrolled), filter_view);
        gtk_widget_show(filter_view);
 
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_BUTTON_GAP);
 
-       button = pref_button_new(NULL, NULL, _("Defaults"), FALSE,
+       button = pref_button_new(nullptr, nullptr, _("Defaults"),
                                 G_CALLBACK(filter_default_cb), filter_view);
-       gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       gq_gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
 
-       button = pref_button_new(NULL, GTK_STOCK_REMOVE, NULL, FALSE,
+       button = pref_button_new(nullptr, GQ_ICON_REMOVE, _("Remove"),
                                 G_CALLBACK(filter_remove_cb), filter_view);
-       gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       gq_gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
 
-       button = pref_button_new(NULL, GTK_STOCK_ADD, NULL, FALSE,
+       button = pref_button_new(nullptr, GQ_ICON_ADD, _("Add"),
                                 G_CALLBACK(filter_add_cb), filter_view);
-       gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       gq_gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
 }
 
@@ -2907,7 +2919,7 @@ static void config_tab_metadata(GtkWidget *notebook)
 
        gtk_label_set_xalign(GTK_LABEL(label), 0.0);
        gtk_label_set_yalign(GTK_LABEL(label), 0.5);
-       gtk_misc_set_padding(GTK_MISC(label), 22, 0);
+       gtk_widget_set_margin_start(label, 22);
        pref_spacer(group, PREF_PAD_GROUP);
 
        group = pref_group_new(vbox, FALSE, _("Step 1 Options:"), GTK_ORIENTATION_VERTICAL);
@@ -2966,7 +2978,7 @@ static void config_tab_metadata(GtkWidget *notebook)
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
        pref_checkbox_link_sensitivity(ct_button, hbox);
 
-       pref_spin_new_int(hbox, _("Timeout (seconds):"), NULL, 0, 900, 1, options->metadata.confirm_timeout, &c_options->metadata.confirm_timeout);
+       pref_spin_new_int(hbox, _("Timeout (seconds):"), nullptr, 0, 900, 1, options->metadata.confirm_timeout, &c_options->metadata.confirm_timeout);
 
        pref_checkbox_new_int(group, _("Write metadata on image change"), options->metadata.confirm_on_image_change, &c_options->metadata.confirm_on_image_change);
 
@@ -2991,8 +3003,7 @@ static void config_tab_metadata(GtkWidget *notebook)
 
 /* keywords tab */
 
-typedef struct _KeywordFindData KeywordFindData;
-struct _KeywordFindData
+struct KeywordFindData
 {
        GenericDialog *gd;
 
@@ -3013,12 +3024,14 @@ struct _KeywordFindData
        guint idle_id; /* event source id */
 };
 
-#define KEYWORD_DIALOG_WIDTH 400
+enum {
+       KEYWORD_DIALOG_WIDTH = 400
+};
 
 static void keywords_find_folder(KeywordFindData *kfd, FileData *dir_fd)
 {
-       GList *list_d = NULL;
-       GList *list_f = NULL;
+       GList *list_d = nullptr;
+       GList *list_f = nullptr;
 
        if (kfd->recurse)
                {
@@ -3026,7 +3039,7 @@ static void keywords_find_folder(KeywordFindData *kfd, FileData *dir_fd)
                }
        else
                {
-               filelist_read(dir_fd, &list_f, NULL);
+               filelist_read(dir_fd, &list_f, nullptr);
                }
 
        list_f = filelist_filter(list_f, FALSE);
@@ -3039,13 +3052,13 @@ static void keywords_find_folder(KeywordFindData *kfd, FileData *dir_fd)
 static void keywords_find_reset(KeywordFindData *kfd)
 {
        filelist_free(kfd->list);
-       kfd->list = NULL;
+       kfd->list = nullptr;
 
        filelist_free(kfd->list_dir);
-       kfd->list_dir = NULL;
+       kfd->list_dir = nullptr;
 }
 
-static void keywords_find_close_cb(GenericDialog *UNUSED(fd), gpointer data)
+static void keywords_find_close_cb(GenericDialog *, gpointer data)
 {
        auto kfd = static_cast<KeywordFindData *>(data);
 
@@ -3060,8 +3073,8 @@ static void keywords_find_finish(KeywordFindData *kfd)
 {
        keywords_find_reset(kfd);
 
-       gtk_entry_set_text(GTK_ENTRY(kfd->progress), _("done"));
-       spinner_set_interval(kfd->spinner, -1);
+       gq_gtk_entry_set_text(GTK_ENTRY(kfd->progress), _("done"));
+       gtk_spinner_stop(GTK_SPINNER(kfd->spinner));
 
        gtk_widget_set_sensitive(kfd->group, TRUE);
        gtk_widget_set_sensitive(kfd->button_start, TRUE);
@@ -3069,7 +3082,7 @@ static void keywords_find_finish(KeywordFindData *kfd)
        gtk_widget_set_sensitive(kfd->button_close, TRUE);
 }
 
-static void keywords_find_stop_cb(GenericDialog *UNUSED(fd), gpointer data)
+static void keywords_find_stop_cb(GenericDialog *, gpointer data)
 {
        auto kfd = static_cast<KeywordFindData *>(data);
 
@@ -3105,13 +3118,14 @@ static gboolean keywords_find_file(gpointer data)
                        keywords = keywords->next;
                        }
 
-               gtk_entry_set_text(GTK_ENTRY(kfd->progress), fd->path);
+               gq_gtk_entry_set_text(GTK_ENTRY(kfd->progress), fd->path);
                file_data_unref(fd);
-               string_list_free(keywords);
+               g_list_free_full(keywords, g_free);
 
                return (G_SOURCE_CONTINUE);
                }
-       else if (kfd->list_dir)
+
+       if (kfd->list_dir)
                {
                FileData *fd;
 
@@ -3130,21 +3144,21 @@ static gboolean keywords_find_file(gpointer data)
        return G_SOURCE_REMOVE;
 }
 
-static void keywords_find_start_cb(GenericDialog *UNUSED(fd), gpointer data)
+static void keywords_find_start_cb(GenericDialog *, gpointer data)
 {
        auto kfd = static_cast<KeywordFindData *>(data);
        gchar *path;
 
        if (kfd->list || !gtk_widget_get_sensitive(kfd->button_start)) return;
 
-       path = remove_trailing_slash((gtk_entry_get_text(GTK_ENTRY(kfd->entry))));
+       path = remove_trailing_slash((gq_gtk_entry_get_text(GTK_ENTRY(kfd->entry))));
        parse_out_relatives(path);
 
        if (!isdir(path))
                {
                warning_dialog(_("Invalid folder"),
                                _("The specified folder can not be found."),
-                               GTK_STOCK_DIALOG_WARNING, kfd->gd->dialog);
+                               GQ_ICON_DIALOG_WARNING, kfd->gd->dialog);
                }
        else
                {
@@ -3154,7 +3168,7 @@ static void keywords_find_start_cb(GenericDialog *UNUSED(fd), gpointer data)
                gtk_widget_set_sensitive(kfd->button_start, FALSE);
                gtk_widget_set_sensitive(kfd->button_stop, TRUE);
                gtk_widget_set_sensitive(kfd->button_close, FALSE);
-               spinner_set_interval(kfd->spinner, SPINNER_SPEED);
+               gtk_spinner_start(GTK_SPINNER(kfd->spinner));
 
                dir_fd = file_data_new_dir(path);
                keywords_find_folder(kfd, dir_fd);
@@ -3176,18 +3190,18 @@ static void keywords_find_dialog(GtkWidget *widget, const gchar *path)
        kfd->gd = generic_dialog_new(_("Search for keywords"),
                                                                        "search_for_keywords",
                                                                        widget, FALSE,
-                                                                       NULL, kfd);
+                                                                       nullptr, kfd);
        gtk_window_set_default_size(GTK_WINDOW(kfd->gd->dialog), KEYWORD_DIALOG_WIDTH, -1);
        kfd->gd->cancel_cb = keywords_find_close_cb;
-       kfd->button_close = generic_dialog_add_button(kfd->gd, GTK_STOCK_CLOSE, NULL,
+       kfd->button_close = generic_dialog_add_button(kfd->gd, GQ_ICON_CLOSE, _("Close"),
                                                     keywords_find_close_cb, FALSE);
-       kfd->button_start = generic_dialog_add_button(kfd->gd, GTK_STOCK_OK, _("S_tart"),
+       kfd->button_start = generic_dialog_add_button(kfd->gd, GQ_ICON_OK, _("S_tart"),
                                                     keywords_find_start_cb, FALSE);
-       kfd->button_stop = generic_dialog_add_button(kfd->gd, GTK_STOCK_STOP, NULL,
+       kfd->button_stop = generic_dialog_add_button(kfd->gd, GQ_ICON_STOP, _("Stop"),
                                                    keywords_find_stop_cb, FALSE);
        gtk_widget_set_sensitive(kfd->button_stop, FALSE);
 
-       generic_dialog_add_message(kfd->gd, NULL, _("Search for keywords"), NULL, FALSE);
+       generic_dialog_add_message(kfd->gd, nullptr, _("Search for keywords"), nullptr, FALSE);
 
        hbox = pref_box_new(kfd->gd->vbox, FALSE, GTK_ORIENTATION_HORIZONTAL, 0);
        pref_spacer(hbox, PREF_PAD_INDENT);
@@ -3196,9 +3210,9 @@ static void keywords_find_dialog(GtkWidget *widget, const gchar *path)
        hbox = pref_box_new(kfd->group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
        pref_label_new(hbox, _("Folder:"));
 
-       label = tab_completion_new(&kfd->entry, path, NULL, NULL, NULL, NULL);
+       label = tab_completion_new(&kfd->entry, path, nullptr, nullptr, nullptr, nullptr);
        tab_completion_add_select_button(kfd->entry,_("Select folder") , TRUE);
-       gtk_box_pack_start(GTK_BOX(hbox), label, TRUE, TRUE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(hbox), label, TRUE, TRUE, 0);
        gtk_widget_show(label);
 
        pref_checkbox_new_int(kfd->group, _("Include subfolders"), FALSE, &kfd->recurse);
@@ -3209,22 +3223,22 @@ static void keywords_find_dialog(GtkWidget *widget, const gchar *path)
        kfd->progress = gtk_entry_new();
        gtk_widget_set_can_focus(kfd->progress, FALSE);
        gtk_editable_set_editable(GTK_EDITABLE(kfd->progress), FALSE);
-       gtk_entry_set_text(GTK_ENTRY(kfd->progress), _("click start to begin"));
-       gtk_box_pack_start(GTK_BOX(hbox), kfd->progress, TRUE, TRUE, 0);
+       gq_gtk_entry_set_text(GTK_ENTRY(kfd->progress), _("click start to begin"));
+       gq_gtk_box_pack_start(GTK_BOX(hbox), kfd->progress, TRUE, TRUE, 0);
        gtk_widget_show(kfd->progress);
 
-       kfd->spinner = spinner_new(NULL, -1);
-       gtk_box_pack_start(GTK_BOX(hbox), kfd->spinner, FALSE, FALSE, 0);
+       kfd->spinner = gtk_spinner_new();
+       gq_gtk_box_pack_start(GTK_BOX(hbox), kfd->spinner, FALSE, FALSE, 0);
        gtk_widget_show(kfd->spinner);
 
-       kfd->list = NULL;
+       kfd->list = nullptr;
 
        gtk_widget_show(kfd->gd->dialog);
 }
 
-static void keywords_find_cb(GtkWidget *widget, gpointer UNUSED(data))
+static void keywords_find_cb(GtkWidget *widget, gpointer)
 {
-       const gchar *path = layout_get_path(NULL);
+       const gchar *path = layout_get_path(nullptr);
 
        if (!path || !*path) path = homedir();
        keywords_find_dialog(widget, path);
@@ -3232,9 +3246,10 @@ static void keywords_find_cb(GtkWidget *widget, gpointer UNUSED(data))
 
 static void config_tab_keywords_save()
 {
-       GtkTextIter start, end;
+       GtkTextIter start;
+       GtkTextIter end;
        GtkTextBuffer *buffer;
-       GList *kw_list = NULL;
+       GList *kw_list = nullptr;
        GList *work;
        gchar *buffer_text;
        gchar *kw_split;
@@ -3246,7 +3261,7 @@ static void config_tab_keywords_save()
        buffer_text = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
 
        kw_split = strtok(buffer_text, "\n");
-       while (kw_split != NULL)
+       while (kw_split != nullptr)
                {
                work = kw_list;
                found = FALSE;
@@ -3263,12 +3278,12 @@ static void config_tab_keywords_save()
                        {
                        kw_list = g_list_append(kw_list, g_strdup(kw_split));
                        }
-               kw_split = strtok(NULL, "\n");
+               kw_split = strtok(nullptr, "\n");
                }
 
        keyword_list_set(kw_list);
 
-       string_list_free(kw_list);
+       g_list_free_full(kw_list, g_free);
        g_free(buffer_text);
 }
 
@@ -3292,15 +3307,15 @@ static void config_tab_keywords(GtkWidget *notebook)
 
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_BUTTON_GAP);
 
-       button = pref_button_new(hbox, GTK_STOCK_EXECUTE, _("Search"), FALSE,
+       button = pref_button_new(hbox, GQ_ICON_RUN, _("Search"),
                                   G_CALLBACK(keywords_find_cb), keyword_text);
        gtk_widget_set_tooltip_text(button, "Search for existing keywords");
 
 
        keyword_text = gtk_text_view_new();
        gtk_widget_set_size_request(keyword_text, 20, 20);
-       scrolled = gtk_scrolled_window_new(NULL, NULL);
-       gtk_box_pack_start(GTK_BOX(group), scrolled, TRUE, TRUE, 0);
+       scrolled = gq_gtk_scrolled_window_new(nullptr, nullptr);
+       gq_gtk_box_pack_start(GTK_BOX(group), scrolled, TRUE, TRUE, 0);
        gtk_widget_show(scrolled);
 
 #ifdef HAVE_SPELL
@@ -3311,7 +3326,7 @@ static void config_tab_keywords(GtkWidget *notebook)
                }
 #endif
 
-       gtk_container_add(GTK_CONTAINER(scrolled), keyword_text);
+       gq_gtk_container_add(GTK_WIDGET(scrolled), keyword_text);
        gtk_widget_show(keyword_text);
 
        gtk_text_view_set_editable(GTK_TEXT_VIEW(keyword_text), TRUE);
@@ -3347,7 +3362,7 @@ static void config_tab_keywords(GtkWidget *notebook)
 #ifdef HAVE_LCMS
 static void intent_menu_cb(GtkWidget *combo, gpointer data)
 {
-       gint *option = static_cast<gint *>(data);
+       auto option = static_cast<gint *>(data);
 
        switch (gtk_combo_box_get_active(GTK_COMBO_BOX(combo)))
                {
@@ -3375,7 +3390,7 @@ static void add_intent_menu(GtkWidget *table, gint column, gint row, const gchar
 
        *option_c = option;
 
-       pref_table_label(table, column, row, text, 0.0);
+       pref_table_label(table, column, row, text, GTK_ALIGN_START);
 
        combo = gtk_combo_box_text_new();
 
@@ -3395,7 +3410,7 @@ static void add_intent_menu(GtkWidget *table, gint column, gint row, const gchar
        g_signal_connect(G_OBJECT(combo), "changed",
                         G_CALLBACK(intent_menu_cb), option_c);
 
-       gtk_table_attach(GTK_TABLE(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
+       gq_gtk_grid_attach(GTK_GRID(table), combo, column + 1, column + 2, row, row + 1, GTK_SHRINK, static_cast<GtkAttachOptions>(0), 0, 0);
        gtk_widget_show(combo);
 }
 #endif
@@ -3417,15 +3432,15 @@ static void config_tab_color(GtkWidget *notebook)
 #endif
 
        table = pref_table_new(group, 3, COLOR_PROFILE_INPUTS + 1, FALSE, FALSE);
-       gtk_table_set_col_spacings(GTK_TABLE(table), PREF_PAD_GAP);
+       gtk_grid_set_column_spacing(GTK_GRID(table), PREF_PAD_GAP);
 
-       label = pref_table_label(table, 0, 0, _("Type"), 0.0);
+       label = pref_table_label(table, 0, 0, _("Type"), GTK_ALIGN_START);
        pref_label_bold(label, TRUE, FALSE);
 
-       label = pref_table_label(table, 1, 0, _("Menu name"), 0.0);
+       label = pref_table_label(table, 1, 0, _("Menu name"), GTK_ALIGN_START);
        pref_label_bold(label, TRUE, FALSE);
 
-       label = pref_table_label(table, 2, 0, _("File"), 0.0);
+       label = pref_table_label(table, 2, 0, _("File"), GTK_ALIGN_START);
        pref_label_bold(label, TRUE, FALSE);
 
        for (i = 0; i < COLOR_PROFILE_INPUTS; i++)
@@ -3434,25 +3449,23 @@ static void config_tab_color(GtkWidget *notebook)
                gchar *buf;
 
                buf = g_strdup_printf(_("Input %d:"), i + COLOR_PROFILE_FILE);
-               pref_table_label(table, 0, i + 1, buf, 1.0);
+               pref_table_label(table, 0, i + 1, buf, GTK_ALIGN_END);
                g_free(buf);
 
                entry = gtk_entry_new();
                gtk_entry_set_max_length(GTK_ENTRY(entry), EDITOR_NAME_MAX_LENGTH);
                if (options->color_profile.input_name[i])
                        {
-                       gtk_entry_set_text(GTK_ENTRY(entry), options->color_profile.input_name[i]);
+                       gq_gtk_entry_set_text(GTK_ENTRY(entry), options->color_profile.input_name[i]);
                        }
-               gtk_table_attach(GTK_TABLE(table), entry, 1, 2, i + 1, i + 2,
-                                static_cast<GtkAttachOptions>(GTK_FILL | GTK_EXPAND), static_cast<GtkAttachOptions>(0), 0, 0);
+               gq_gtk_grid_attach(GTK_GRID(table), entry, 1, 2, i + 1, i + 2, static_cast<GtkAttachOptions>(GTK_FILL | GTK_EXPAND), static_cast<GtkAttachOptions>(0), 0, 0);
                gtk_widget_show(entry);
                color_profile_input_name_entry[i] = entry;
 
-               tabcomp = tab_completion_new(&entry, options->color_profile.input_file[i], NULL, ".icc", "ICC Files", NULL);
+               tabcomp = tab_completion_new(&entry, options->color_profile.input_file[i], nullptr, ".icc", "ICC Files", nullptr);
                tab_completion_add_select_button(entry, _("Select color profile"), FALSE);
                gtk_widget_set_size_request(entry, 160, -1);
-               gtk_table_attach(GTK_TABLE(table), tabcomp, 2, 3, i + 1, i + 2,
-                                static_cast<GtkAttachOptions>(GTK_FILL | GTK_EXPAND), static_cast<GtkAttachOptions>(0), 0, 0);
+               gq_gtk_grid_attach(GTK_GRID(table), tabcomp, 2, 3, i + 1, i + 2, static_cast<GtkAttachOptions>(GTK_FILL | GTK_EXPAND), static_cast<GtkAttachOptions>(0), 0, 0);
                gtk_widget_show(tabcomp);
                color_profile_input_file_entry[i] = entry;
                }
@@ -3466,23 +3479,21 @@ static void config_tab_color(GtkWidget *notebook)
 
        table = pref_table_new(group, 2, 1, FALSE, FALSE);
 
-       pref_table_label(table, 0, 0, _("Screen:"), 1.0);
+       pref_table_label(table, 0, 0, _("Screen:"), GTK_ALIGN_END);
        tabcomp = tab_completion_new(&color_profile_screen_file_entry,
-                                    options->color_profile.screen_file, NULL, ".icc", "ICC Files", NULL);
+                                    options->color_profile.screen_file, nullptr, ".icc", "ICC Files", nullptr);
        tab_completion_add_select_button(color_profile_screen_file_entry, _("Select color profile"), FALSE);
        gtk_widget_set_size_request(color_profile_screen_file_entry, 160, -1);
 #ifdef HAVE_LCMS
        add_intent_menu(table, 0, 1, _("Render Intent:"), options->color_profile.render_intent, &c_options->color_profile.render_intent);
 #endif
-       gtk_table_attach(GTK_TABLE(table), tabcomp, 1, 2,
-                        0, 1,
-                        static_cast<GtkAttachOptions>(GTK_FILL | GTK_EXPAND), static_cast<GtkAttachOptions>(0), 0, 0);
+       gq_gtk_grid_attach(GTK_GRID(table), tabcomp, 1, 2, 0, 1, static_cast<GtkAttachOptions>(GTK_FILL | GTK_EXPAND), static_cast<GtkAttachOptions>(0), 0, 0);
 
        gtk_widget_show(tabcomp);
 }
 
 /* advanced entry tab */
-static void use_geeqie_trash_cb(GtkWidget *widget, gpointer UNUSED(data))
+static void use_geeqie_trash_cb(GtkWidget *widget, gpointer)
 {
        if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)))
                {
@@ -3491,7 +3502,7 @@ static void use_geeqie_trash_cb(GtkWidget *widget, gpointer UNUSED(data))
                }
 }
 
-static void use_system_trash_cb(GtkWidget *widget, gpointer UNUSED(data))
+static void use_system_trash_cb(GtkWidget *widget, gpointer)
 {
        if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)))
                {
@@ -3500,7 +3511,7 @@ static void use_system_trash_cb(GtkWidget *widget, gpointer UNUSED(data))
                }
 }
 
-static void use_no_cache_cb(GtkWidget *widget, gpointer UNUSED(data))
+static void use_no_cache_cb(GtkWidget *widget, gpointer)
 {
        if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)))
                {
@@ -3536,8 +3547,8 @@ static void config_tab_behavior(GtkWidget *notebook)
        pref_checkbox_new_int(group, _("Enable Delete key"),
                              options->file_ops.enable_delete_key, &c_options->file_ops.enable_delete_key);
 
-       ct_button = pref_radiobutton_new(group, NULL, _("Use Geeqie trash location"),
-                                       !options->file_ops.use_system_trash && !options->file_ops.no_trash, G_CALLBACK(use_geeqie_trash_cb),NULL);
+       ct_button = pref_radiobutton_new(group, nullptr, _("Use Geeqie trash location"),
+                                       !options->file_ops.use_system_trash && !options->file_ops.no_trash, G_CALLBACK(use_geeqie_trash_cb),nullptr);
 
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
        pref_checkbox_link_sensitivity(ct_button, hbox);
@@ -3545,9 +3556,9 @@ static void config_tab_behavior(GtkWidget *notebook)
        pref_spacer(hbox, PREF_PAD_INDENT - PREF_PAD_SPACE);
        pref_label_new(hbox, _("Folder:"));
 
-       tabcomp = tab_completion_new(&safe_delete_path_entry, options->file_ops.safe_delete_path, NULL, NULL, NULL, NULL);
-       tab_completion_add_select_button(safe_delete_path_entry, NULL, TRUE);
-       gtk_box_pack_start(GTK_BOX(hbox), tabcomp, TRUE, TRUE, 0);
+       tabcomp = tab_completion_new(&safe_delete_path_entry, options->file_ops.safe_delete_path, nullptr, nullptr, nullptr, nullptr);
+       tab_completion_add_select_button(safe_delete_path_entry, nullptr, TRUE);
+       gq_gtk_box_pack_start(GTK_BOX(hbox), tabcomp, TRUE, TRUE, 0);
        gtk_widget_show(tabcomp);
 
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_BUTTON_GAP);
@@ -3557,23 +3568,23 @@ static void config_tab_behavior(GtkWidget *notebook)
        spin = pref_spin_new_int(hbox, _("Maximum size:"), _("MiB"),
                                 0, 2048, 1, options->file_ops.safe_delete_folder_maxsize, &c_options->file_ops.safe_delete_folder_maxsize);
        gtk_widget_set_tooltip_markup(spin, _("Set to 0 for unlimited size"));
-       button = pref_button_new(NULL, NULL, _("View"), FALSE,
-                                G_CALLBACK(safe_delete_view_cb), NULL);
-       gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       button = pref_button_new(nullptr, nullptr, _("View"),
+                                G_CALLBACK(safe_delete_view_cb), nullptr);
+       gq_gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
 
-       button = pref_button_new(NULL, GTK_STOCK_CLEAR, NULL, FALSE,
-                                G_CALLBACK(safe_delete_clear_cb), NULL);
-       gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       button = pref_button_new(nullptr, GQ_ICON_CLEAR, nullptr,
+                                G_CALLBACK(safe_delete_clear_cb), nullptr);
+       gq_gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
 
        c_options->file_ops.no_trash = options->file_ops.no_trash;
        c_options->file_ops.use_system_trash = options->file_ops.use_system_trash;
 
        pref_radiobutton_new(group, ct_button, _("Use system Trash bin"),
-                                       options->file_ops.use_system_trash && !options->file_ops.no_trash, G_CALLBACK(use_system_trash_cb), NULL);
+                                       options->file_ops.use_system_trash && !options->file_ops.no_trash, G_CALLBACK(use_system_trash_cb), nullptr);
 
        pref_radiobutton_new(group, ct_button, _("Use no trash at all"),
-                       options->file_ops.no_trash, G_CALLBACK(use_no_cache_cb), NULL);
+                       options->file_ops.no_trash, G_CALLBACK(use_no_cache_cb), nullptr);
 
        gtk_widget_show(button);
 
@@ -3603,6 +3614,10 @@ static void config_tab_behavior(GtkWidget *notebook)
                                options->with_rename, &c_options->with_rename);
        gtk_widget_set_tooltip_text(with_rename,"Change the default button for Copy/Move dialogs");
 
+       collections_on_top = pref_checkbox_new_int(group, _("Permit duplicates in Collections"),
+                               options->collections_duplicates, &c_options->collections_duplicates);
+       gtk_widget_set_tooltip_text(collections_on_top,"Allow the same image to be in a Collection more than once");
+
        collections_on_top = pref_checkbox_new_int(group, _("Open collections on top"),
                                options->collections_on_top, &c_options->collections_on_top);
        gtk_widget_set_tooltip_text(collections_on_top,"Open collections window on top");
@@ -3611,13 +3626,13 @@ static void config_tab_behavior(GtkWidget *notebook)
                                options->hide_window_in_fullscreen, &c_options->hide_window_in_fullscreen);
        gtk_widget_set_tooltip_text(hide_window_in_fullscreen,"When alt-tabbing, prevent Geeqie window showing twice");
 
-       pref_spin_new_int(group, _("Recent folder list maximum size"), NULL,
+       pref_spin_new_int(group, _("Recent folder list maximum size"), nullptr,
                          1, 50, 1, options->open_recent_list_maxsize, &c_options->open_recent_list_maxsize);
 
-       tmp = pref_spin_new_int(group, _("Recent folder-image list maximum size"), NULL, 0, 50, 1, options->recent_folder_image_list_maxsize, &c_options->recent_folder_image_list_maxsize);
+       tmp = pref_spin_new_int(group, _("Recent folder-image list maximum size"), nullptr, 0, 50, 1, options->recent_folder_image_list_maxsize, &c_options->recent_folder_image_list_maxsize);
        gtk_widget_set_tooltip_text(tmp, _("List of the last image viewed in each recent folder.\nRe-opening a folder will set focus to the last image viewed."));
 
-       pref_spin_new_int(group, _("Drag'n drop icon size"), NULL,
+       pref_spin_new_int(group, _("Drag'n drop icon size"), nullptr,
                          16, 256, 16, options->dnd_icon_size, &c_options->dnd_icon_size);
 
        table = pref_table_new(group, 2, 1, FALSE, FALSE);
@@ -3632,8 +3647,8 @@ static void config_tab_behavior(GtkWidget *notebook)
 
        pref_checkbox_new_int(group, _("Progressive keyboard scrolling"),
                              options->progressive_key_scrolling, &c_options->progressive_key_scrolling);
-       pref_spin_new_int(group, _("Keyboard scrolling step multiplier:"), NULL,
-                         1, 32, 1, options->keyboard_scroll_step, (int *)&c_options->keyboard_scroll_step);
+       pref_spin_new_int(group, _("Keyboard scrolling step multiplier:"), nullptr,
+                         1, 32, 1, options->keyboard_scroll_step, reinterpret_cast<int *>(&c_options->keyboard_scroll_step));
        pref_checkbox_new_int(group, _("Mouse wheel scrolls image"),
                              options->mousewheel_scrolls, &c_options->mousewheel_scrolls);
        pref_checkbox_new_int(group, _("Navigation by left or middle click on image"),
@@ -3664,18 +3679,63 @@ static void config_tab_behavior(GtkWidget *notebook)
 
        group = pref_group_new(vbox, FALSE, _("Debugging"), GTK_ORIENTATION_VERTICAL);
 
-       pref_spin_new_int(group, _("Debug level:"), NULL,
+       pref_spin_new_int(group, _("Debug level:"), nullptr,
                          DEBUG_LEVEL_MIN, DEBUG_LEVEL_MAX, 1, get_debug_level(), &debug_c);
 
        pref_checkbox_new_int(group, _("Timer data"),
                        options->log_window.timer_data, &c_options->log_window.timer_data);
 
-       pref_spin_new_int(group, _("Log Window max. lines:"), NULL,
+       pref_spin_new_int(group, _("Log Window max. lines:"), nullptr,
                          1, 99999, 1, options->log_window_lines, &options->log_window_lines);
+
+       hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
+       pref_label_new(hbox, _("Log Window F1 command: "));
+       log_window_f1_entry = gtk_entry_new();
+       gq_gtk_entry_set_text(GTK_ENTRY(log_window_f1_entry), options->log_window.action);
+       gq_gtk_box_pack_start(GTK_BOX(hbox), log_window_f1_entry, FALSE, FALSE, 0);
+       gtk_entry_set_width_chars(GTK_ENTRY(log_window_f1_entry), 15);
+       gtk_widget_show(log_window_f1_entry);
 #endif
 }
 
 /* accelerators tab */
+
+static gboolean accel_search_function_cb(GtkTreeModel *model, gint column, const gchar *key, GtkTreeIter *iter, gpointer)
+{
+       gboolean ret = TRUE;
+       gchar *key_nocase;
+       gchar *text;
+       gchar *text_nocase;
+
+       gtk_tree_model_get(model, iter, column, &text, -1);
+       text_nocase = g_utf8_casefold(text, -1);
+       key_nocase = g_utf8_casefold(key, -1);
+
+       if (g_strstr_len(text_nocase, -1, key_nocase))
+               {
+               ret = FALSE;
+               }
+
+       g_free(key_nocase);
+       g_free(text);
+       g_free(text_nocase);
+
+       return ret;
+}
+
+static void accel_row_activated_cb(GtkTreeView *tree_view, GtkTreePath *, GtkTreeViewColumn *column, gpointer)
+{
+       GList *list;
+       gint col_num = 0;
+
+       list = gtk_tree_view_get_columns(tree_view);
+       col_num = g_list_index(list, column);
+
+       g_list_free(list);
+
+       gtk_tree_view_set_search_column(tree_view, col_num);
+}
+
 static void config_tab_accelerators(GtkWidget *notebook)
 {
        GtkWidget *hbox;
@@ -3692,10 +3752,10 @@ static void config_tab_accelerators(GtkWidget *notebook)
 
        group = pref_group_new(vbox, TRUE, _("Accelerators"), GTK_ORIENTATION_VERTICAL);
 
-       scrolled = gtk_scrolled_window_new(NULL, NULL);
-       gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
+       scrolled = gq_gtk_scrolled_window_new(nullptr, nullptr);
+       gq_gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled), GTK_SHADOW_IN);
        gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled), GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
-       gtk_box_pack_start(GTK_BOX(group), scrolled, TRUE, TRUE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(group), scrolled, TRUE, TRUE, 0);
        gtk_widget_show(scrolled);
 
        accel_store = gtk_tree_store_new(4, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
@@ -3762,26 +3822,33 @@ static void config_tab_accelerators(GtkWidget *notebook)
        gtk_tree_view_column_set_resizable(column, TRUE);
        gtk_tree_view_append_column(GTK_TREE_VIEW(accel_view), column);
 
+       /* Search on text in column */
+       gtk_tree_view_set_activate_on_single_click(GTK_TREE_VIEW(accel_view), TRUE);
+       g_signal_connect(accel_view, "row_activated", G_CALLBACK(accel_row_activated_cb), accel_store);
+       gtk_tree_view_set_enable_search(GTK_TREE_VIEW(accel_view), TRUE);
+       gtk_tree_view_set_search_column(GTK_TREE_VIEW(accel_view), AE_TOOLTIP);
+       gtk_tree_view_set_search_equal_func(GTK_TREE_VIEW(accel_view), accel_search_function_cb, nullptr, nullptr);
+
        accel_store_populate();
-       gtk_container_add(GTK_CONTAINER(scrolled), accel_view);
+       gq_gtk_container_add(GTK_WIDGET(scrolled), accel_view);
        gtk_widget_show(accel_view);
 
        hbox = pref_box_new(group, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_BUTTON_GAP);
 
-       button = pref_button_new(NULL, NULL, _("Defaults"), FALSE,
+       button = pref_button_new(nullptr, nullptr, _("Defaults"),
                                 G_CALLBACK(accel_default_cb), accel_view);
-       gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       gq_gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
 
-       button = pref_button_new(NULL, NULL, _("Reset selected"), FALSE,
+       button = pref_button_new(nullptr, nullptr, _("Reset selected"),
                                 G_CALLBACK(accel_reset_cb), accel_view);
        gtk_widget_set_tooltip_text(button, _("Will only reset changes made before the settings are saved"));
-       gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       gq_gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
 
-       button = pref_button_new(NULL, NULL, _("Clear selected"), FALSE,
+       button = pref_button_new(nullptr, nullptr, _("Clear selected"),
                                 G_CALLBACK(accel_clear_cb), accel_view);
-       gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
+       gq_gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
        gtk_widget_show(button);
 }
 
@@ -3797,7 +3864,7 @@ static void config_tab_toolbar_main(GtkWidget *notebook)
        vbox = scrolled_notebook_page(notebook, _("Toolbar Main"));
 
        toolbardata = toolbar_select_new(lw, TOOLBAR_MAIN);
-       gtk_box_pack_start(GTK_BOX(vbox), toolbardata, TRUE, TRUE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(vbox), toolbardata, TRUE, TRUE, 0);
        gtk_widget_show(vbox);
 }
 
@@ -3813,30 +3880,32 @@ static void config_tab_toolbar_status(GtkWidget *notebook)
        vbox = scrolled_notebook_page(notebook, _("Toolbar Status"));
 
        toolbardata = toolbar_select_new(lw, TOOLBAR_STATUS);
-       gtk_box_pack_start(GTK_BOX(vbox), toolbardata, TRUE, TRUE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(vbox), toolbardata, TRUE, TRUE, 0);
        gtk_widget_show(vbox);
 }
 
 /* advanced tab */
 static gint extension_sort_cb(gconstpointer a, gconstpointer b)
 {
-       return g_strcmp0((gchar *)a, (gchar *)b);
+       return g_strcmp0(static_cast<const gchar *>(a), static_cast<const gchar *>(b));
 }
 
 static void config_tab_advanced(GtkWidget *notebook)
 {
-       GtkWidget *vbox;
-       GtkWidget *group;
-       GSList *formats_list;
-       GList *extensions_list = NULL;
        gchar **extensions;
-       GtkWidget *tabcomp;
        GdkPixbufFormat *fm;
        gint i;
-       GString *types_string = g_string_new(NULL);
-       GtkWidget *types_string_label;
-       GtkWidget *threads_string_label;
+       GList *extensions_list = nullptr;
+       GSList *formats_list;
+       GString *types_string = g_string_new(nullptr);
+       GtkWidget *alternate_checkbox;
        GtkWidget *dupes_threads_spin;
+       GtkWidget *group;
+       GtkWidget *subgroup;
+       GtkWidget *tabcomp;
+       GtkWidget *threads_string_label;
+       GtkWidget *types_string_label;
+       GtkWidget *vbox;
 
        vbox = scrolled_notebook_page(notebook, _("Advanced"));
        group = pref_group_new(vbox, FALSE, _("External preview extraction"), GTK_ORIENTATION_VERTICAL);
@@ -3886,22 +3955,22 @@ static void config_tab_advanced(GtkWidget *notebook)
 
        group = pref_group_new(vbox, FALSE, _("File identification tool"), GTK_ORIENTATION_VERTICAL);
        external_preview_select_entry = gtk_entry_new();
-       tabcomp = tab_completion_new(&external_preview_select_entry, options->external_preview.select, NULL, NULL, NULL, NULL);
+       tabcomp = tab_completion_new(&external_preview_select_entry, options->external_preview.select, nullptr, nullptr, nullptr, nullptr);
        tab_completion_add_select_button(external_preview_select_entry, _("Select file identification tool"), FALSE);
-       gtk_box_pack_start(GTK_BOX(group), tabcomp, TRUE, TRUE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(group), tabcomp, TRUE, TRUE, 0);
        gtk_widget_show(tabcomp);
 
        group = pref_group_new(vbox, FALSE, _("Preview extraction tool"), GTK_ORIENTATION_VERTICAL);
        external_preview_extract_entry = gtk_entry_new();
-       tabcomp = tab_completion_new(&external_preview_extract_entry, options->external_preview.extract, NULL, NULL, NULL, NULL);
+       tabcomp = tab_completion_new(&external_preview_extract_entry, options->external_preview.extract, nullptr, nullptr, nullptr, nullptr);
        tab_completion_add_select_button(external_preview_extract_entry, _("Select preview extraction tool"), FALSE);
-       gtk_box_pack_start(GTK_BOX(group), tabcomp, TRUE, TRUE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(group), tabcomp, TRUE, TRUE, 0);
        gtk_widget_show(tabcomp);
 
        gtk_widget_show(vbox);
 
        g_slist_free(formats_list);
-       string_list_free(extensions_list);
+       g_list_free_full(extensions_list, g_free);
        g_string_free(types_string, TRUE);
 
        pref_spacer(group, PREF_PAD_GROUP);
@@ -3909,13 +3978,27 @@ static void config_tab_advanced(GtkWidget *notebook)
        pref_line(vbox, PREF_PAD_SPACE);
        group = pref_group_new(vbox, FALSE, _("Thread pool limits"), GTK_ORIENTATION_VERTICAL);
 
-       threads_string_label = pref_label_new(group, "This option limits the number of threads (or cpu cores)\nthat Geeqie will use when running duplicate checks. The default value is 0, which means all available cores will be used.");
+       threads_string_label = pref_label_new(group, "This option limits the number of threads (or cpu cores) that Geeqie will use when running duplicate checks.\nThe value 0 means all available cores will be used.");
        gtk_label_set_line_wrap(GTK_LABEL(threads_string_label), TRUE);
 
        pref_spacer(vbox, PREF_PAD_GROUP);
 
        dupes_threads_spin = pref_spin_new_int(vbox, _("Duplicate check:"), _("max. threads"), 0, get_cpu_cores(), 1, options->threads.duplicates, &c_options->threads.duplicates);
        gtk_widget_set_tooltip_markup(dupes_threads_spin, _("Set to 0 for unlimited"));
+
+       pref_spacer(group, PREF_PAD_GROUP);
+
+       pref_line(vbox, PREF_PAD_SPACE);
+
+       group = pref_group_new(vbox, FALSE, _("Alternate similarity alogorithm"), GTK_ORIENTATION_VERTICAL);
+
+       alternate_checkbox = pref_checkbox_new_int(group, _("Enable alternate similarity algorithm"), options->alternate_similarity_algorithm.enabled, &c_options->alternate_similarity_algorithm.enabled);
+
+       subgroup = pref_box_new(group, FALSE, GTK_ORIENTATION_VERTICAL, PREF_PAD_GAP);
+       pref_checkbox_link_sensitivity(alternate_checkbox, subgroup);
+
+       alternate_checkbox = pref_checkbox_new_int(subgroup, _("Use grayscale"), options->alternate_similarity_algorithm.grayscale, &c_options->alternate_similarity_algorithm.grayscale);
+       gtk_widget_set_tooltip_text(alternate_checkbox, _("Reduce fingerprint to grayscale"));
 }
 
 /* stereo tab */
@@ -3936,16 +4019,16 @@ static void config_tab_stereo(GtkWidget *notebook)
        add_stereo_mode_menu(table, 0, 0, _("Windowed stereo mode"), options->stereo.mode, &c_options->stereo.mode, FALSE);
 
        table = pref_table_new(group, 2, 2, TRUE, FALSE);
-       box = pref_table_box(table, 0, 0, GTK_ORIENTATION_HORIZONTAL, NULL);
+       box = pref_table_box(table, 0, 0, GTK_ORIENTATION_HORIZONTAL, nullptr);
        pref_checkbox_new_int(box, _("Mirror left image"),
                              options->stereo.mode & PR_STEREO_MIRROR_LEFT, &c_options->stereo.tmp.mirror_left);
-       box = pref_table_box(table, 1, 0, GTK_ORIENTATION_HORIZONTAL, NULL);
+       box = pref_table_box(table, 1, 0, GTK_ORIENTATION_HORIZONTAL, nullptr);
        pref_checkbox_new_int(box, _("Flip left image"),
                              options->stereo.mode & PR_STEREO_FLIP_LEFT, &c_options->stereo.tmp.flip_left);
-       box = pref_table_box(table, 0, 1, GTK_ORIENTATION_HORIZONTAL, NULL);
+       box = pref_table_box(table, 0, 1, GTK_ORIENTATION_HORIZONTAL, nullptr);
        pref_checkbox_new_int(box, _("Mirror right image"),
                              options->stereo.mode & PR_STEREO_MIRROR_RIGHT, &c_options->stereo.tmp.mirror_right);
-       box = pref_table_box(table, 1, 1, GTK_ORIENTATION_HORIZONTAL, NULL);
+       box = pref_table_box(table, 1, 1, GTK_ORIENTATION_HORIZONTAL, nullptr);
        pref_checkbox_new_int(box, _("Flip right image"),
                              options->stereo.mode & PR_STEREO_FLIP_RIGHT, &c_options->stereo.tmp.flip_right);
        pref_checkbox_new_int(group, _("Swap left and right images"),
@@ -3961,16 +4044,16 @@ static void config_tab_stereo(GtkWidget *notebook)
        table = pref_table_new(box2, 2, 1, FALSE, FALSE);
        add_stereo_mode_menu(table, 0, 0, _("Fullscreen stereo mode"), options->stereo.fsmode, &c_options->stereo.fsmode, TRUE);
        table = pref_table_new(box2, 2, 2, TRUE, FALSE);
-       box = pref_table_box(table, 0, 0, GTK_ORIENTATION_HORIZONTAL, NULL);
+       box = pref_table_box(table, 0, 0, GTK_ORIENTATION_HORIZONTAL, nullptr);
        pref_checkbox_new_int(box, _("Mirror left image"),
                              options->stereo.fsmode & PR_STEREO_MIRROR_LEFT, &c_options->stereo.tmp.fs_mirror_left);
-       box = pref_table_box(table, 1, 0, GTK_ORIENTATION_HORIZONTAL, NULL);
+       box = pref_table_box(table, 1, 0, GTK_ORIENTATION_HORIZONTAL, nullptr);
        pref_checkbox_new_int(box, _("Flip left image"),
                              options->stereo.fsmode & PR_STEREO_FLIP_LEFT, &c_options->stereo.tmp.fs_flip_left);
-       box = pref_table_box(table, 0, 1, GTK_ORIENTATION_HORIZONTAL, NULL);
+       box = pref_table_box(table, 0, 1, GTK_ORIENTATION_HORIZONTAL, nullptr);
        pref_checkbox_new_int(box, _("Mirror right image"),
                              options->stereo.fsmode & PR_STEREO_MIRROR_RIGHT, &c_options->stereo.tmp.fs_mirror_right);
-       box = pref_table_box(table, 1, 1, GTK_ORIENTATION_HORIZONTAL, NULL);
+       box = pref_table_box(table, 1, 1, GTK_ORIENTATION_HORIZONTAL, nullptr);
        pref_checkbox_new_int(box, _("Flip right image"),
                              options->stereo.fsmode & PR_STEREO_FLIP_RIGHT, &c_options->stereo.tmp.fs_flip_right);
        pref_checkbox_new_int(box2, _("Swap left and right images"),
@@ -3980,17 +4063,17 @@ static void config_tab_stereo(GtkWidget *notebook)
 
        group2 = pref_group_new(box2, FALSE, _("Fixed position"), GTK_ORIENTATION_VERTICAL);
        table = pref_table_new(group2, 5, 3, FALSE, FALSE);
-       pref_table_spin_new_int(table, 0, 0, _("Width"), NULL,
+       pref_table_spin_new_int(table, 0, 0, _("Width"), nullptr,
                          1, 5000, 1, options->stereo.fixed_w, &c_options->stereo.fixed_w);
-       pref_table_spin_new_int(table, 3, 0,  _("Height"), NULL,
+       pref_table_spin_new_int(table, 3, 0,  _("Height"), nullptr,
                          1, 5000, 1, options->stereo.fixed_h, &c_options->stereo.fixed_h);
-       pref_table_spin_new_int(table, 0, 1,  _("Left X"), NULL,
+       pref_table_spin_new_int(table, 0, 1,  _("Left X"), nullptr,
                          0, 5000, 1, options->stereo.fixed_x1, &c_options->stereo.fixed_x1);
-       pref_table_spin_new_int(table, 3, 1,  _("Left Y"), NULL,
+       pref_table_spin_new_int(table, 3, 1,  _("Left Y"), nullptr,
                          0, 5000, 1, options->stereo.fixed_y1, &c_options->stereo.fixed_y1);
-       pref_table_spin_new_int(table, 0, 2,  _("Right X"), NULL,
+       pref_table_spin_new_int(table, 0, 2,  _("Right X"), nullptr,
                          0, 5000, 1, options->stereo.fixed_x2, &c_options->stereo.fixed_x2);
-       pref_table_spin_new_int(table, 3, 2,  _("Right Y"), NULL,
+       pref_table_spin_new_int(table, 3, 2,  _("Right Y"), nullptr,
                          0, 5000, 1, options->stereo.fixed_y2, &c_options->stereo.fixed_y2);
 
 }
@@ -4004,9 +4087,9 @@ static void config_window_create(LayoutWindow *lw)
        GtkWidget *button;
        GtkWidget *ct_button;
 
-       if (!c_options) c_options = init_options(NULL);
+       if (!c_options) c_options = init_options(nullptr);
 
-       configwindow = window_new(GTK_WINDOW_TOPLEVEL, "preferences", PIXBUF_INLINE_ICON_CONFIG, NULL, _("Preferences"));
+       configwindow = window_new("preferences", PIXBUF_INLINE_ICON_CONFIG, nullptr, _("Preferences"));
        DEBUG_NAME(configwindow);
        gtk_window_set_type_hint(GTK_WINDOW(configwindow), GDK_WINDOW_TYPE_HINT_DIALOG);
        g_signal_connect(G_OBJECT(configwindow), "delete_event",
@@ -4014,7 +4097,7 @@ static void config_window_create(LayoutWindow *lw)
        if (options->save_dialog_window_positions)
                {
                gtk_window_resize(GTK_WINDOW(configwindow), lw->options.preferences_window.w, lw->options.preferences_window.h);
-               gtk_window_move(GTK_WINDOW(configwindow), lw->options.preferences_window.x, lw->options.preferences_window.y);
+               gq_gtk_window_move(GTK_WINDOW(configwindow), lw->options.preferences_window.x, lw->options.preferences_window.y);
                }
        else
                {
@@ -4024,13 +4107,13 @@ static void config_window_create(LayoutWindow *lw)
        gtk_container_set_border_width(GTK_CONTAINER(configwindow), PREF_PAD_BORDER);
 
        win_vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, PREF_PAD_SPACE);
-       gtk_container_add(GTK_CONTAINER(configwindow), win_vbox);
+       gq_gtk_container_add(GTK_WIDGET(configwindow), win_vbox);
        gtk_widget_show(win_vbox);
 
        notebook = gtk_notebook_new();
        gtk_notebook_set_tab_pos(GTK_NOTEBOOK(notebook), GTK_POS_LEFT);
        gtk_notebook_set_scrollable(GTK_NOTEBOOK(notebook), TRUE);
-       gtk_box_pack_start(GTK_BOX(win_vbox), notebook, TRUE, TRUE, 0);
+       gq_gtk_box_pack_start(GTK_BOX(win_vbox), notebook, TRUE, TRUE, 0);
 
        config_tab_general(notebook);
        config_tab_image(notebook);
@@ -4049,30 +4132,30 @@ static void config_window_create(LayoutWindow *lw)
 
        gtk_notebook_set_current_page(GTK_NOTEBOOK(notebook), lw->options.preferences_window.page_number);
 
-       hbox = gtk_hbutton_box_new();
+       hbox = gtk_button_box_new(GTK_ORIENTATION_HORIZONTAL);
        gtk_button_box_set_layout(GTK_BUTTON_BOX(hbox), GTK_BUTTONBOX_END);
        gtk_box_set_spacing(GTK_BOX(hbox), PREF_PAD_BUTTON_GAP);
-       gtk_box_pack_end(GTK_BOX(win_vbox), hbox, FALSE, FALSE, 0);
+       gq_gtk_box_pack_end(GTK_BOX(win_vbox), hbox, FALSE, FALSE, 0);
        gtk_widget_show(hbox);
 
-       button = pref_button_new(NULL, GTK_STOCK_HELP, NULL, FALSE,
+       button = pref_button_new(nullptr, GQ_ICON_HELP, _("Help"),
                                 G_CALLBACK(config_window_help_cb), notebook);
-       gtk_container_add(GTK_CONTAINER(hbox), button);
+       gq_gtk_container_add(GTK_WIDGET(hbox), button);
        gtk_widget_set_can_default(button, TRUE);
        gtk_widget_show(button);
 
-       button = pref_button_new(NULL, GTK_STOCK_OK, NULL, FALSE,
+       button = pref_button_new(nullptr, GQ_ICON_OK, "OK",
                                 G_CALLBACK(config_window_ok_cb), notebook);
-       gtk_container_add(GTK_CONTAINER(hbox), button);
+       gq_gtk_container_add(GTK_WIDGET(hbox), button);
        gtk_widget_set_can_default(button, TRUE);
        gtk_widget_grab_default(button);
        gtk_widget_show(button);
 
        ct_button = button;
 
-       button = pref_button_new(NULL, GTK_STOCK_CANCEL, NULL, FALSE,
-                                G_CALLBACK(config_window_close_cb), NULL);
-       gtk_container_add(GTK_CONTAINER(hbox), button);
+       button = pref_button_new(nullptr, GQ_ICON_CANCEL, _("Cancel"),
+                                G_CALLBACK(config_window_close_cb), nullptr);
+       gq_gtk_container_add(GTK_WIDGET(hbox), button);
        gtk_widget_set_can_default(button, TRUE);
        gtk_widget_show(button);
 
@@ -4121,11 +4204,9 @@ void show_about_window(LayoutWindow *lw)
        gchar *artists[2];
        gchar *author_line;
        gchar *authors[1000];
-       gchar *authors_path;
        gchar *comment;
        gchar *timezone_path;
        gchar *translators;
-       gchar *translators_path;
        gint i_authors = 0;
        gint n = 0;
        gsize bytes_read;
@@ -4133,8 +4214,7 @@ void show_about_window(LayoutWindow *lw)
        gsize size;
        guint32 flags;
 
-       copyright = g_string_new(NULL);
-       copyright = g_string_append(copyright, "This program comes with absolutely no warranty.\nGNU General Public License, version 2 or later.\nSee https://www.gnu.org/licenses/old-licenses/gpl-2.0.html\n\n");
+       copyright = g_string_new("This program comes with absolutely no warranty.\nGNU General Public License, version 2 or later.\nSee https://www.gnu.org/licenses/old-licenses/gpl-2.0.html\n\n");
 
        timezone_path = g_build_filename(get_rc_dir(), TIMEZONE_DATABASE_FILE, NULL);
        if (g_file_test(timezone_path, G_FILE_TEST_EXISTS))
@@ -4152,36 +4232,36 @@ void show_about_window(LayoutWindow *lw)
                }
        g_free(timezone_path);
 
-       authors_path = g_build_filename(GQ_RESOURCE_PATH_CREDITS, "authors", NULL);
+       copyright = g_string_append(copyright, "\n\nSome icons by https://www.flaticon.com");
 
-       in_stream_authors = g_resources_open_stream(authors_path, G_RESOURCE_LOOKUP_FLAGS_NONE, NULL);
+       in_stream_authors = g_resources_open_stream(GQ_RESOURCE_PATH_CREDITS "/authors", G_RESOURCE_LOOKUP_FLAGS_NONE, nullptr);
 
        data_stream = g_data_input_stream_new(in_stream_authors);
 
-       authors[0] = NULL;
-       while ((author_line = g_data_input_stream_read_line(G_DATA_INPUT_STREAM(data_stream), &length, NULL, NULL)))
+       authors[0] = nullptr;
+       while ((author_line = g_data_input_stream_read_line(G_DATA_INPUT_STREAM(data_stream), &length, nullptr, nullptr)))
                {
                authors[i_authors] = g_strdup(author_line);
                i_authors++;
                g_free(author_line);
                }
-       authors[i_authors] = NULL;
+       authors[i_authors] = nullptr;
 
-       g_input_stream_close(in_stream_authors, NULL, NULL);
+       g_input_stream_close(in_stream_authors, nullptr, nullptr);
 
-       translators_path = g_build_filename(GQ_RESOURCE_PATH_CREDITS, "translators", NULL);
+       constexpr auto translators_path = GQ_RESOURCE_PATH_CREDITS "/translators";
 
-       g_resources_get_info(translators_path, G_RESOURCE_LOOKUP_FLAGS_NONE, &size, &flags, NULL);
+       g_resources_get_info(translators_path, G_RESOURCE_LOOKUP_FLAGS_NONE, &size, &flags, nullptr);
 
-       in_stream_translators = g_resources_open_stream(translators_path, G_RESOURCE_LOOKUP_FLAGS_NONE, NULL);
+       in_stream_translators = g_resources_open_stream(translators_path, G_RESOURCE_LOOKUP_FLAGS_NONE, nullptr);
        translators = static_cast<gchar *>(g_malloc0(size));
-       g_input_stream_read_all(in_stream_translators, translators, size, &bytes_read, NULL, NULL);
-       g_input_stream_close(in_stream_translators, NULL, NULL);
+       g_input_stream_read_all(in_stream_translators, translators, size, &bytes_read, nullptr, nullptr);
+       g_input_stream_close(in_stream_translators, nullptr, nullptr);
 
        comment = g_strconcat("Project created by John Ellis\nGQview 1998\nGeeqie 2007\n\n\nDevelopment and bug reports:\n", GQ_EMAIL_ADDRESS, "\nhttps://github.com/BestImageViewer/geeqie/issues",NULL);
 
        artists[0] = g_strdup("Néstor Díaz Valencia <nestor@estudionexos.com>");
-       artists[1] = NULL;
+       artists[1] = nullptr;
 
        pixbuf_logo = pixbuf_inline(PIXBUF_INLINE_LOGO);
        pixbuf_icon = pixbuf_inline(PIXBUF_INLINE_ICON);
@@ -4211,18 +4291,14 @@ void show_about_window(LayoutWindow *lw)
                }
 
        g_free(artists[0]);
-       g_free(authors_path);
        g_free(comment);
        g_free(translators);
-       g_free(translators_path);
        g_object_unref(data_stream);
        g_object_unref(in_stream_authors);
        g_object_unref(in_stream_translators);
-
-       return;
 }
 
-static void image_overlay_set_text_colours()
+static void image_overlay_set_text_colors()
 {
        c_options->image_overlay.text_red = options->image_overlay.text_red;
        c_options->image_overlay.text_green = options->image_overlay.text_green;
@@ -4242,11 +4318,11 @@ static void image_overlay_set_text_colours()
 
 static void timezone_async_ready_cb(GObject *source_object, GAsyncResult *res, gpointer data)
 {
-       GError *error = NULL;
+       GError *error = nullptr;
        auto tz = static_cast<TZData *>(data);
        gchar *tmp_filename;
        gchar *timezone_bin;
-       gchar *tmp_dir = NULL;
+       gchar *tmp_dir = nullptr;
        FileData *fd;
 
        if (!g_cancellable_is_cancelled(tz->cancellable))
@@ -4270,7 +4346,7 @@ static void timezone_async_ready_cb(GObject *source_object, GAsyncResult *res, g
                                }
                        else
                                {
-                               warning_dialog(_("Warning: Cannot open timezone database file"), _("See the Log Window"), GTK_STOCK_DIALOG_WARNING, NULL);
+                               warning_dialog(_("Warning: Cannot open timezone database file"), _("See the Log Window"), GQ_ICON_DIALOG_WARNING, nullptr);
                                }
 
                        g_free(timezone_bin);
@@ -4278,19 +4354,19 @@ static void timezone_async_ready_cb(GObject *source_object, GAsyncResult *res, g
                        }
                else
                        {
-                       warning_dialog(_("Warning: Cannot open timezone database file"), _("See the Log Window"), GTK_STOCK_DIALOG_WARNING, NULL);
+                       warning_dialog(_("Warning: Cannot open timezone database file"), _("See the Log Window"), GQ_ICON_DIALOG_WARNING, nullptr);
                        }
                g_free(tmp_filename);
                file_data_unref(fd);
                }
        else
                {
-               file_util_warning_dialog(_("Error: Timezone database download failed"), error->message, GTK_STOCK_DIALOG_ERROR, NULL);
+               file_util_warning_dialog(_("Error: Timezone database download failed"), error->message, GQ_ICON_DIALOG_ERROR, nullptr);
                }
 
-       g_file_delete(tz->tmp_g_file, NULL, &error);
+       g_file_delete(tz->tmp_g_file, nullptr, &error);
        g_object_unref(tz->tmp_g_file);
-       tz->tmp_g_file = NULL;
+       tz->tmp_g_file = nullptr;
        g_object_unref(tz->cancellable);
        g_object_unref(tz->timezone_database_gq);
 }
@@ -4301,11 +4377,11 @@ static void timezone_progress_cb(goffset current_num_bytes, goffset total_num_by
 
        if (!g_cancellable_is_cancelled(tz->cancellable))
                {
-               gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(tz->progress), (gdouble)current_num_bytes / total_num_bytes);
+               gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(tz->progress), static_cast<gdouble>(current_num_bytes) / total_num_bytes);
                }
 }
 
-static void timezone_cancel_button_cb(GenericDialog *UNUSED(gd), gpointer data)
+static void timezone_cancel_button_cb(GenericDialog *, gpointer data)
 {
        auto tz = static_cast<TZData *>(data);
 
@@ -4315,7 +4391,7 @@ static void timezone_cancel_button_cb(GenericDialog *UNUSED(gd), gpointer data)
 static void timezone_database_install_cb(GtkWidget *widget, gpointer data)
 {
        auto tz = static_cast<TZData *>(data);
-       GError *error = NULL;
+       GError *error = nullptr;
        GFileIOStream *io_stream;
 
        if (tz->tmp_g_file)
@@ -4327,7 +4403,7 @@ static void timezone_database_install_cb(GtkWidget *widget, gpointer data)
 
        if (error)
                {
-               file_util_warning_dialog(_("Timezone database download failed"), error->message, GTK_STOCK_DIALOG_ERROR, NULL);
+               file_util_warning_dialog(_("Timezone database download failed"), error->message, GQ_ICON_DIALOG_ERROR, nullptr);
                log_printf("Error: Download timezone database failed:\n%s", error->message);
                g_error_free(error);
                g_object_unref(tz->tmp_g_file);
@@ -4336,12 +4412,12 @@ static void timezone_database_install_cb(GtkWidget *widget, gpointer data)
                {
                tz->timezone_database_gq = g_file_new_for_uri(TIMEZONE_DATABASE_WEB);
 
-               tz->gd = generic_dialog_new(_("Timezone database"), "download_timezone_database", NULL, TRUE, timezone_cancel_button_cb, tz);
+               tz->gd = generic_dialog_new(_("Timezone database"), "download_timezone_database", nullptr, TRUE, timezone_cancel_button_cb, tz);
 
-               generic_dialog_add_message(tz->gd, GTK_STOCK_DIALOG_INFO, _("Downloading timezone database"), NULL, FALSE);
+               generic_dialog_add_message(tz->gd, GQ_ICON_DIALOG_INFO, _("Downloading timezone database"), nullptr, FALSE);
 
                tz->progress = gtk_progress_bar_new();
-               gtk_box_pack_start(GTK_BOX(tz->gd->vbox), tz->progress, FALSE, FALSE, 0);
+               gq_gtk_box_pack_start(GTK_BOX(tz->gd->vbox), tz->progress, FALSE, FALSE, 0);
                gtk_widget_show(tz->progress);
 
                gtk_widget_show(tz->gd->dialog);