1.11.5 - browser - thumbnails - png - shows first index as transparent

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user0
XnThusiast
Posts: 3057
Joined: Sat May 09, 2015 9:37 am

1.11.5 - browser - thumbnails - png - shows first index as transparent

Post by user0 »

XnViewMP 1.11.5
Windows11 (25H2), display resolution 3840x2160, dpi scale 150%

Browser - filelist - thumbnails


To reproduce:
0. prerequisites
- clean app with default settings
- have test image (optimized by tinypng) in folder
test_img_1.png

Code: Select all

Chunk | Contents
------+----------------------------------------------------------------
IHDR  | PNG image header: 100×100, 1 bit/pixel, paletted, noninterlaced
PLTE  | palette, 1 entry
IDAT  | PNG image data
IEND  | end-of-image marker
test_img_2.png

Code: Select all

Chunk | Contents
------+----------------------------------------------------------------
IHDR  | PNG image header: 100×100, 2 bits/pixel, paletted, noninterlaced
PLTE  | palette, 3 entries
IDAT  | PNG image data
IEND  | end-of-image marker
1. open folder with test image in Browser
thumbnail shows correctly - OK
2. navigate to other folder
3. return to test folder
thumbnail shows first index as transparent

no issue if Thumbnail caching is disabled






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