#define GQ_ICON_SELECT_COLOR "color-select"
#define GQ_ICON_COLOR_MANAGEMENT "preferences-color" // breeze has nicer "color-management" icon, missing in others
-#define GQ_ICON_PROPERTIES "document-properties"
// not done... plus many more
#define GQ_ICON_COLLECTION GTK_STOCK_INDEX
#define GQ_ICON_DND GTK_STOCK_DND_MULTIPLE