I use Ubuntu 20.04.2 Mate Desktop. I noticed recently that Caja file manager shows blurry and intermingled characters while renaming file or folders in some themes. I currently have Materia-Dark-Compact theme, that's what it looks like:
Is there a ~/.config/gtk-3.0/settings.ini trick that I can use?
EDIT: I tested installed themes one by one.
All of the Material themes look buggy:
Yuyo-Dark OK
Yuyo OK
Radiant-Mate OK
Menta OK
Materia-Light-Compact Buggy
Materia-Light Buggy
Materia-Dark-Compact Buggy
Green-Submarine OK
Green-Laguna OK
Blue-Submarine OK
Blue-Menta OK
Black-Mate OK
Ambiant-Mate-Dark OK
Ambiant-Mate OK