Dear Wolfgang, with Plasma 5 KDE what used to be a "Task Bar" is now the "Panel" and, the "System Tray" is the Widget which contains things such as "Touchpad", "Kate Sessions", Printers" and so on - the description is "Access hidden applications minimised in the system tray". So,your point "But note that if the chosen desktop theme doesn't provide the corresponding graphics, Plasma will fall back to the default theme which is breeze.", has lead me to check which parts of Oxygen5 are currently installed: - oxygen5-icon-theme - oxygen5-icon-theme-large I'm currently downloading oxygen5-icon-scheme-scalable: 235.74 MiB download size. Yes, it's not normally needed but, let's see if the 1st of March patches have changed something . . . Best regards DCu