Created attachment 113314 [details] Screenshot showcasing the issue Color schemes are never fully applied for running applications, leading to an odd mixture of colors when changing the scheme but not restarting every program currently running on the system. This only seems to affect menus in Qt applications, including Plasma and right-clicking the KWin titlebar: The background of the menu will adapt to the new scheme, but the highlight color and the colors of embedded buttons still follow the old scheme. I attached a screenshot which shows this issue in action: Everything cyan is the newly applied scheme, everything green belongs to the old one. The menu background is cyan, but the radio buttons and highlight remain green.
how do you change the color scheme?
(In reply to Martin Flöser from comment #1) I go to Configure Desktop -> Appearance -> Colors, select my new scheme, then click the Apply button. Other than an obscure console command, this is the only way I'm aware of to change system color schemes.
This seems to have been solved for Qt applications, only GTK windows require restarting to notice new color schemes. With the issue being old I'm going to close this and file something more specific if I feel there's still an issue.