App UI - context menu - add predefined background colors

[user0]

XnViewMP 1.6.4 64bit
Windows11 (23H2), display resolution 3840x2160, win scaling 150%

App UI - Browser/Viewer - context menu
Sometimes it is convenient to quickly switch background color (to the predefined colors) via the context menu.
Unfortunately, this option is not available in the app.

Suggestion

app_ui_context_menu_add_background_color.png

General

• add list of predefined background colors to the context menu of Viewer(Normal/Fullscreen)/Browser(Filelist)
  colors are all more or less the same the across apps (see below), I would just copy from Capture One

A
simple menu

• Viewer (Normal/Fullscreen) / Browser
  same menu items everywhere (that changes corresponding color)

B
simple menu

• Viewer (Normal/Fullscreen)
  • context menu - empty space
    opens mockup A menu
  • context menu - Image
    opens Canvas color selection dialog, same as Viewer>Edit>Background color... (remove this item from Edit menu)

• Browser
  • context menu - empty space
    opens mockup A menu

C
complex menu

• Viewer (Normal/Fullscreen)
  • context menu - empty space / image
    add header to the context menu to unify for both empty space bg and canvas bg

• Browser
  • context menu - empty space
    opens mockup A menu

Example

• context menus
  other_apps_bg.png

• bg colors
  other_apps_bg_colors.png