Bug 170496 - Transparent gallery images in dark mode have light background
Summary: Transparent gallery images in dark mode have light background
Status: UNCONFIRMED
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: UI (show other bugs)
Version:
(earliest affected)
26.8.0.0 alpha0+ master
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Dark-Mode
  Show dependency tree / graph
 
Reported: 2026-01-27 11:35 UTC by Gabor Kelemen (Collabora)
Modified: 2026-01-29 06:15 UTC (History)
0 users

See Also:
Crash report or crash signature:

Attachments
Screenshot of the Gallery sidebar under Linux (134.48 KB, image/png)
2026-01-27 11:35 UTC, Gabor Kelemen (Collabora) 		Details
Preview of one image in the sidebar - good (74.01 KB, image/png)
2026-01-27 11:36 UTC, Gabor Kelemen (Collabora) 		Details
Screenshot of the Gallery sidebar under Windows (234.55 KB, image/png)
2026-01-27 11:37 UTC, Gabor Kelemen (Collabora) 		Details
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Description Gabor Kelemen (Collabora) 2026-01-27 11:35:44 UTC 
Created attachment 205198 [details]
Screenshot of the Gallery sidebar under Linux

When opening the Gallery sidebar in dark mode, the images with transparent background have a light white-grey checkered background.

1. Open Writer with dark theme
2. Open the Gallery sidebar and any of the default galleries (except Backgrounds and Bullets - they seem to be fine)
-> The transparent images have light background in the sidebar
3. Double click on one of the images to see a larger preview of it in the sidebar
-> The preview does have a correct, dark background

Version: 26.8.0.0.alpha0+ (X86_64)
Build ID: 8fb5be18f8febe88f7d0b72e4b30efd41891feb7
CPU threads: 32; OS: Linux 6.14; UI render: default; VCL: gtk3
Locale: hu-HU (hu_HU.UTF-8); UI: en-US
Calc: threaded

and it looks the same under Windows as well.
Comment 1 Gabor Kelemen (Collabora) 2026-01-27 11:36:06 UTC 
Created attachment 205199 [details]
Preview of one image in the sidebar - good
Comment 2 Gabor Kelemen (Collabora) 2026-01-27 11:37:32 UTC 
Created attachment 205200 [details]
Screenshot of the Gallery sidebar under Windows

Version: 26.8.0.0.alpha0+ (X86_64)
Build ID: 680(Build:0)
CPU threads: 24; OS: Windows 10 X86_64 (build 19045); UI render: Skia/Raster; VCL: win
Locale: hu-HU (hu_HU); UI: en-US
Calc: threaded
Comment 3 Sahil Gautam 2026-01-29 06:15:59 UTC 
@Gabor, what is expected on this? Should the checkered pattern be a dark checkered pattern?