Bug 169624 - Dark Mode Broken on GTK4 VCL
Summary: Dark Mode Broken on GTK4 VCL
Status: UNCONFIRMED
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: UI (show other bugs)
Version:
(earliest affected)
25.8.3.2 release
Hardware: All Linux (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Gtk4 Dark-Mode
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Reported: 2025-11-23 03:42 UTC by rushing27alien
Modified: 2025-11-23 16:36 UTC (History)
0 users

See Also:
Crash report or crash signature:

Attachments
Broken dark mode on toolbar (65.63 KB, image/png)
2025-11-23 03:45 UTC, rushing27alien 		Details
Broken dark mode on tabs (57.80 KB, image/png)
2025-11-23 03:46 UTC, rushing27alien 		Details
Broken dark mode on groups (50.12 KB, image/png)
2025-11-23 03:46 UTC, rushing27alien 		Details
Broken dark mode on contextual groups (45.24 KB, image/png)
2025-11-23 03:47 UTC, rushing27alien 		Details
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Description rushing27alien 2025-11-23 03:42:31 UTC 
Description:
Hello, I'd like to report on an issue with LibreOffice's (LO) GTK4 VCL plugin. Currently dark mode is broken with some unreadable UI thanks to white-on-white text.

Steps to Reproduce:
1. Install/Build LibreOffice with GTK4 VCL support
2. Start LibreOffice and enable GTK4 VCL with the env `SAL_USE_VCLPLUGIN=GTK4`
3. Use dark mode

Actual Results:
Dark mode broken on toolbar, selected tab, group name and others.

Expected Results:
Dark mode to not have a white-gray gradient toolbar, have white text for selected tab, have black bg color and white text on group names.


Reproducible: Always


User Profile Reset: Yes

Additional Info:
Version: 25.8.3.2 (X86_64) / LibreOffice Community
Build ID: 8ca8d55c161d602844f5428fa4b58097424e324e
CPU threads: 16; OS: Linux 6.17; UI render: default; VCL: gtk4
Locale: id-ID (id_ID.UTF-8); UI: id-ID
Flatpak
Calc: CL threaded
Comment 1 rushing27alien 2025-11-23 03:45:31 UTC 
Created attachment 204216 [details]
Broken dark mode on toolbar
Comment 2 rushing27alien 2025-11-23 03:46:15 UTC 
Created attachment 204217 [details]
Broken dark mode on tabs
Comment 3 rushing27alien 2025-11-23 03:46:42 UTC 
Created attachment 204218 [details]
Broken dark mode on groups
Comment 4 rushing27alien 2025-11-23 03:47:06 UTC 
Created attachment 204219 [details]
Broken dark mode on contextual groups