Ok, I did as you suggested and now HPLiP toolbox shows its natural face. See Can't use Qt5ct to change global application style to kvantum
Still there is a problem with its icon in systray : no menu on left or right click.
Ok, I did as you suggested and now HPLiP toolbox shows its natural face. See Can't use Qt5ct to change global application style to kvantum
Still there is a problem with its icon in systray : no menu on left or right click.