Created attachment 131326 [details] screenshot STEPS TO REPRODUCE 1. set global theme to Breeze Dark 2. open a KDE app on Wayland 3. repeatedly hover over the buttons in window decoration OBSERVED RESULT in the attached screenshot we can observe a blue dot in the upper left corner of the tooltip. The other corners also have wrong colors, but it's less noticeable. EXPECTED RESULT whole border of the tooltip should have consistent color SOFTWARE/OS VERSIONS Operating System: KDE neon Unstable Edition KDE Plasma Version: 5.19.80 KDE Frameworks Version: 5.74.0 Qt Version: 5.14.2
The corners are probably rendered with an alpha component, and the tooltip window doesn't request RGBA. I am unsure if the bug is in Qt or in the breeze style, but I doubt it is a kwin bug.
Hmm, I don't see the effect on X11 though.
(In reply to Christoph Feck from comment #1) > The corners are probably rendered with an alpha component, and the tooltip > window doesn't request RGBA. I am unsure if the bug is in Qt or in the > breeze style, but I doubt it is a kwin bug. All internal clients (tooltips are one of them) have RGBA client buffers. If there are issues with corners, it's worth checking what breeze does.
I also noticed this with the standard Breeze theme, so it's not specific to Breeze Dark. Operating System: KDE neon Unstable Edition KDE Plasma Version: 5.24.80 KDE Frameworks Version: 5.92.0 Qt Version: 5.15.3
Context menu of window decoration has the same glitch.
Created attachment 154090 [details] Broken corners on tooltip on Breeze light I'll update the bug title since it doesn't affect only Breeze Dark
Is this still an issue in Plasma 6?
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I see rounded corners without glitch on Plasma 6.1.5. Operating System: Arch Linux KDE Plasma Version: 6.1.5 KDE Frameworks Version: 6.6.0 Qt Version: 6.7.3 Graphics Platform: Wayland