Windows11 (24H2), display resolution 3840x2160, dpi scale 150%
Settings - thumbnails - overlay icon
Overlay icons have 2 native sizes (12px and 24px) at which they look crisp and pixel perfect at 2 windows scales (100% and 200%).
However, at intermediate scales, readability is reduced due to interpolation. Smaller sizes are more susceptible to this problem than larger sizes.
Suggestion
- add more sizes for overlay icons to avoid interpolation at small sizes (approach similar to file type icons)
eg 15px, 18px and 21px
- allow user to change icons size
in Settings>Thumbnail>Overlay icons
eg 12, 15, 18, 21, 24, etc., as well as possibly intermediate values with interpolation
- (optional) use .svg icons
eg to programmatically adjust color of icons to match theme (dark/light)
ref
Icon Design: Sizing
Icon Design: Anti-Aliasing
Minimum set of assets to cover all screen sizes, densities, and orientations on Android
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