# Additional Information for Developers
-
## Non-standard icons
-#### Collection drag-drop icon
+### Collection drag-drop icon
#### ![][image_ref_gq_marker_png]
+
Used when dropping images onto a Collection.
Defined in `./src/icons/gq-marker.xpm`.
-#### Overlay Screen Display icons
+### Overlay Screen Display icons
+
+#### ![][image_ref_image_osd_color_png] IMAGE_OSD_COLOR
+
+#### ![][image_ref_image_osd_first_png] IMAGE_OSD_FIRST
-##### ![][image_ref_image_osd_color_png] IMAGE_OSD_COLOR
-##### ![][image_ref_image_osd_first_png] IMAGE_OSD_FIRST
-##### ![][image_ref_image_osd_icon_png] IMAGE_OSD_ICON
-##### ![][image_ref_image_osd_last_png] IMAGE_OSD_LAST
-##### ![][image_ref_image_osd_rotate_auto_png] IMAGE_OSD_ROTATE_AUTO
+#### ![][image_ref_image_osd_icon_png] IMAGE_OSD_ICON
+
+#### ![][image_ref_image_osd_last_png] IMAGE_OSD_LAST
+
+#### ![][image_ref_image_osd_rotate_auto_png] IMAGE_OSD_ROTATE_AUTO
Shown in the Overlay Screen Display. Defined in `./src/image-overlay.cc image_osd_icon_pixbuf()`.
Menu processing is in `./src/layout-util.cc menu_entries[]`.
## Doxygen Documentation
+
Complete code documentation in html format can be generated via the script `./scripts/doxygen.sh`.
[image_ref_image_osd_color_png]: