Created attachment 2949 [details]
.xsession-errors from Focal on host hp945

I've done a few dist-upgrades lately, mostly Buster to Bullseye, but also two of Bionic to Focal. In the last Focal several hours ago, and two of the Bullseyes, Plastik is not selectable as a Widget Style, even though that's the Widget Style in effect when the upgrade was begun, and Plastik is available and selected for Theme and Window Decorations. In each failure of Plastik to be an available Widget Style, Asteroid is selected. As a consequence, left on Asteroid, parts of the UI are not styled as expected (unless I select Keramik Widget Style). I tried reinstalling tdelibs14-trinity on Focal, but it changed nothing.

When I empty ~/.trinity/ of content, then start a session, the same unexpected appearance is presented in KPersonalizer as when plastik is absent as a Widget Style selection. In the eyecandy-O-meter, I always make the same selections, enabling: desktop wallpaper, display contents in moving/resizing windows, icon highlighting, large panel icons, panel background picture, panel icon popups, smoothed fonts & sound theme, and subsequently whatever theme is preselected, which in Focal ATM I'm looking at "TDE Classic Classic TDE style", not plastik. Switching the selection to any of the others retains the non-expected appearance. Proceding into the session, appearance is normal, and Plastik is still missing as a Widget Style selection, which suggests to me this may be some sort of ~/.trinity/ issue as a consequence of upgrading.