Bug 169667 - Collision of OS/GUI configuration (contrast for disabled people) and symbol colouring in Libre Office Writer
Summary: Collision of OS/GUI configuration (contrast for disabled people) and symbol c...
Status: RESOLVED NOTABUG
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
24.8.2.1 release
Hardware: All Windows (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: a11y, Accessibility
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Reported: 2025-11-24 19:11 UTC by gummizelle
Modified: 2025-11-26 20:45 UTC (History)
2 users (show)

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Description gummizelle 2025-11-24 19:11:57 UTC
System: Libre Office for Windows 25.8.2.2 on Windows 11, German version

Bug: If display contrast is modified for disabled users in Windows 11 system configurations, Libre Office Writer will not colour graphic symbols like squares, circles, ellipses and the like, but leave them monochrome.

Best
seb
Comment 1 V Stuart Foote 2025-11-24 21:34:36 UTC
Confirmed the default behavior when Win11 WDM is running with a os/DE "Contrast theme".  LibreOffice follows os/DE theme and accessibility (flattened UI colors) suppressing color use on document canvas.

However, the LibreOffice options panel Tools -> Options -> Accessibility has a droplist for 'High Contrast' that allows you to disable HC mode impact on the LO document canvas.  It defaults to Automatic, so follows the contrast mode reported by the WDM, change to Disabled to block HC response.

Works as designed.

IMHO => NAB

=-testing-=

Version: 25.8.3.2 (X86_64)
Build ID: 8ca8d55c161d602844f5428fa4b58097424e324e
CPU threads: 28; OS: Windows 11 X86_64 (build 26200); UI render: Skia/Raster; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL threaded

Version: 26.2.0.0.alpha1+ (X86_64) / LibreOffice Community
Build ID: 620(Build:0)
CPU threads: 28; OS: Windows 11 X86_64 (build 26200); UI render: Skia/Raster; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL threaded
Comment 2 Michael Weghorn 2025-11-25 18:02:05 UTC
(In reply to V Stuart Foote from comment #1)
> Confirmed the default behavior when Win11 WDM is running with a os/DE
> "Contrast theme".  LibreOffice follows os/DE theme and accessibility
> (flattened UI colors) suppressing color use on document canvas.
> 
> However, the LibreOffice options panel Tools -> Options -> Accessibility has
> a droplist for 'High Contrast' that allows you to disable HC mode impact on
> the LO document canvas.  It defaults to Automatic, so follows the contrast
> mode reported by the WDM, change to Disabled to block HC response.
> 
> Works as designed.
> 
> IMHO => NAB

Indeed, disabling high contrast mode inside LibreOffice should give the expected behavior if you want to have the original colors despite High Contrast being enabled in the Windows settings. See also tdf#164471.

@seb:
Can you verify that works as expected?
Comment 3 gummizelle 2025-11-26 17:51:00 UTC
Cannot verify. The user who reported the issue is an 81 year old visually disabled, unable to reproduce his former setting :)
N.b.: Colouring and highlighting of text worked as usual.

=> The default setting referred to might be reconsidered, since the (dis)function in question is supposed to make it easier for visually disabled, not more complicated.