Customization - browser - overlay icons

[user0]

INFO
XnView MP uses square overlay icons on thumbnails (descriptions are available in Settings > Thumbnails > Overlay icons).
Internally, the icons are organized into size-based sets.

• set
  - info
  - rating
  - extra

• size

  dpi, %	info	extra/rating
  100	12	13
  125	15	16
  150	18	20
  175	21	23
  200	24	26

• name

  dpi, %	file name	example
  100	set-name.png	info.png
  125–175	set-name_size-in-pixels.png	info_18.png
  200	set-name@2x․png	info@2x․png

• format
  - .png
  - .svg

Example

• default overlay icons in raster (vector is not available)
  xnviewmp_overlay_icons_default_260606.png
  xnviewmp_overlay_icons_default_260606.zip

USAGE
To use custom icons:
1. create 'icons' folder in application root directory
2. place properly named files there

[LucM]

Hello,
Good idea, in current configuration it cannot be used. I tried it but it did not work, nothing change. (Ubuntu 25.1 xnview mp 4k screen fractionnal scaling on)

[emarsk]

Hi. What do the square blue icons mean? I see the "X" "I" "E" ones on some of my files and I have no clue about what they're supposed to tell me.

I tried to search the answer on my own, but I found nothing in the settings, nothing in the menus, no tooltips, it looks like there's no proper documentation anywhere, the only promising link is to a dead wiki that redirects to this forum, and here I only found more dead links and some ancient blog posts. Is there any actual documentation available?