Bug 513331

Summary: match app background color (window color scheme) with default opaque windows titlebar colors
Product: [Frameworks and Libraries] frameworks-kcolorscheme Reporter: Liz Lee <waynejwoww>
Component: generalAssignee: Nicolas Fella <nicolas.fella>
Status: REPORTED ---    
Severity: normal CC: christoph, ferenosdev
Priority: NOR    
Version First Reported In: 6.21.0   
Target Milestone: ---   
Platform: Other   
OS: Microsoft Windows   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: color difference light
color difference dark
the kind of themes i am talking about

Description Liz Lee 2025-12-14 00:17:29 UTC
Created attachment 187611 [details]
color difference light

can we please have a windows color scheme that matches the scheme's app background color with the default opaque windows titlebar colors (one for light the windows theme and one for the dark windows theme)?

i am talking about the "windows color scheme" (settings -> windows color scheme).
i am NOT talking about the "editor color theme".

since the change to qt 6 it is not possible to create custom themes anymore. none of the shipped themes does a good job.

currently there is a minimal color difference which looks bad imho.
Comment 1 Liz Lee 2025-12-14 00:17:46 UTC
Created attachment 187612 [details]
color difference dark
Comment 2 Liz Lee 2025-12-14 00:18:12 UTC
Created attachment 187613 [details]
the kind of themes i am talking about
Comment 3 Liz Lee 2025-12-14 00:32:22 UTC
i filed a similar bug for okular:
https://bugs.kde.org/show_bug.cgi?id=513332
Comment 4 Christoph Cullmann 2025-12-15 16:03:40 UTC
> since the change to qt 6 it is not possible to create custom themes anymore.

you can still create custom color themes, that was not removed, just the bundled ones are shipped as resource to always have them.
Comment 5 Christoph Cullmann 2025-12-15 16:04:09 UTC
No idea how to fix that best, but should be done on a lower level.
Comment 6 Christoph Cullmann 2025-12-15 16:04:46 UTC
*** Bug 513332 has been marked as a duplicate of this bug. ***
Comment 7 The Feren OS Dev 2025-12-17 02:57:35 UTC
(In reply to Christoph Cullmann from comment #5)
> No idea how to fix that best, but should be done on a lower level.

I see 2 ways to reasonably fix that:
1. We make separate colour schemes that compile in Windows only that applications compiled on Windows default to - light and dark for the record.
2. We patch Breeze and Breeze Dark to use unique colours when compiled on Windows

Alternatively, we just WONTFIX because not even Win32 matches, last I checked, but that would be missing an opportunity to one up Win32 in that regard.