*on 20.04*, after upgrading from 18.04
this *problem re-surfaced* for me recently
cause & solution: * there was a snap package installed, `gtk-themes-common` (I think) * it clashed with the system installed gtk-theme Yaru * removal of the snap solved my problems
*on 20.04*, after upgrading from 18.04
this *problem re-surfaced* for me recently
cause & solution:
* there was a snap package installed, `gtk-themes-common` (I think)
* it clashed with the system installed gtk-theme Yaru
* removal of the snap solved my problems