On Thursday July 05 2018 15:23:29 dep wrote: >On July 5, 2018 2:29 PM, René J.V. Bertin <rjvbertin@xxxxxxxxx> wrote: > > >> Try`kcmshell5 kwindecoration`, that should open the KCM in question. > >~$ kcmshell5 kwindecoration .. >Setting caption : "Breeze" .. >Setting caption : "Breeze" ... >Setting caption : "Plastik" ... So you have two Breeze varieties installed, plus the Plastik window theme? >kf5.kwidgetsaddons: Invalid framesize. Just to be certain, you do get a window showing a preview of the installed window themes? R.