Bug 507819

Summary: Task Switcher preview in System Settings is using incorrect font colors
Product: [Applications] systemsettings Reporter: joshas
Component: generalAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED FIXED    
Severity: normal CC: nate
Priority: NOR    
Version First Reported In: 6.4.3   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: https://invent.kde.org/plasma/kwin/-/commit/b68e469dbc4bd86bd234859ff6e4368bc663d8a1 Version Fixed In:
Sentry Crash Report:
Attachments: Notice black font color used in preview

Description joshas 2025-08-03 17:22:04 UTC 
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SUMMARY


STEPS TO REPRODUCE
1. Go to System Settings and open Task Switcher panel.
2. Select "Compact"
3. Press "Preview" button to see how it will look like.

OBSERVED RESULT
Preview renders task list with black font color.

EXPECTED RESULT
White font color should be used in preview, as it is used in "real" task switcher.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: Fedora
KDE Plasma Version: 6.4.3
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.1

ADDITIONAL INFORMATION
Same issue is with other types of Task Switcher, not only compact.
Wayland
Comment 1 joshas 2025-08-03 17:23:10 UTC 
Created attachment 183767 [details]
Notice black font color used in preview
Comment 2 Bug Janitor Service 2025-08-03 18:38:52 UTC 
A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/7970
Comment 3 Nicolas Fella 2025-08-04 12:34:48 UTC 
Git commit cde0132f522e514abc8ed813f4ed93a5ec3dc855 by Nicolas Fella.
Committed on 04/08/2025 at 12:07.
Pushed by nicolasfella into branch 'master'.

kcms/tabbox: Use Plasma theme for preview

The actual switcher is using Plasma colors, so make sure the preview matches that

M  +1    -0    src/kcms/tabbox/layoutpreview.cpp

https://invent.kde.org/plasma/kwin/-/commit/cde0132f522e514abc8ed813f4ed93a5ec3dc855
Comment 4 Nicolas Fella 2025-08-05 12:43:29 UTC 
Git commit b68e469dbc4bd86bd234859ff6e4368bc663d8a1 by Nicolas Fella.
Committed on 05/08/2025 at 11:10.
Pushed by vladz into branch 'Plasma/6.4'.

kcms/tabbox: Use Plasma theme for preview

The actual switcher is using Plasma colors, so make sure the preview matches that


(cherry picked from commit cde0132f522e514abc8ed813f4ed93a5ec3dc855)

Co-authored-by: Nicolas Fella <nicolas.fella@gmx.de>

M  +1    -0    src/kcms/tabbox/layoutpreview.cpp

https://invent.kde.org/plasma/kwin/-/commit/b68e469dbc4bd86bd234859ff6e4368bc663d8a1