Created attachment 160828 [details] screen recording STEPS TO REPRODUCE 1. apply Breeze Classic color scheme in Colors KCM 2. open gedt text editor 3. click on its hamburger button and choose "About text editor" OBSERVED RESULT the label of the active button is unreadable and the label of the non-active button is becomes unreadable on mouseover. Please watch the attached screen recording. EXPECTED RESULT the label of any button should always be readable SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.27.7 KDE Frameworks Version: 5.108.0 Qt Version: 5.15.10 Graphics Platform: Wayland ADDITIONAL INFORMATION Can reproduce on neon unstable running Plasma 6 too.