Using current git 2c04b1a KDevelop follows changes to the global colour scheme, even when a theme has been explicitly selected in the new Colour Themes menu. The menu radiobuttons continue to indicate the last theme chosen from the menu, although the new global scheme is now being used. KDevelop should either not follow global scheme changes when a theme is chosen internally, or the menu state should be updated when doing so.
This menu is created wholesale by KColorSchemeManager, moving.
KColorSchemeManager creates the menu, and has a slot to activate a kcolorscheme, that's about it. The application using kcolorschememanager is responsible for saving the user color scheme choice, or treating it as transient. IIUC, the problem here isn't with KColorSchemeManager, but that application using it, is still affected by the system-wide color scheme change, and it only affects a running instance of the app, for example if you restart the application in question the color scheme chosen in kcolorschememanager will be applied (if the application saved and restored the user's choice) regardless of the system-wide one. Changing the color scheme via the colors kcm causes kstyle[1] to apply the new scheme[1]; the latter has an event filter; maybe apps can reimplement that event filter and reapply the scheme that was activated via kcolorscheme manager or just bypass the QEvent::PaletteChanged event. I think, ultimately the fix will have to be in the application not in kcolorschememanager. https://cgit.kde.org/frameworkintegration.git/tree/src/kstyle/kstyle.cpp#n95
Cannot reproduce with Frameworks 5.89 anymore. Can you?
*** Bug 404554 has been marked as a duplicate of this bug. ***
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!