Created attachment 153409 [details] screenshot of KDE taskbar and windows switcher I am using KDE 5.26.0 with Wayland on Debian Bookworm I noticed that for some apps, the icons are different in the taskbar and in the window switcher. I am wondering what is the rational for this. I have an example for VirtualBox 7.0. STEPS TO REPRODUCE 1. Open a KDE/Wayland session 2. Launch VirtualBox 7.0 OBSERVED RESULT The icons in the taskbar is different from the icons in the window switcher. EXPECTED RESULT The icons should be the same. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Debian Bookworm (available in About System) KDE Plasma Version: 5.26.0/Wayland KDE Frameworks Version: 5.98.0 Qt Version: 5.15.6 ADDITIONAL INFORMATION I am using the wayland session. I am using the MediumDefault windows switcher.
It's because KWin honors custom window icons that the app sets. The Icons-Only Task Manager does not, because its job is to show you app icons, not window icons. Whether KWin should honor these custom icons is another matter, because doing so generates this inconsistency and weirds people out.
*** This bug has been marked as a duplicate of bug 459735 ***