Yesterday, I installed Feren OS with KDE Plasma 5. Unfortunately, both root applications (gdebi, synaptic) and the newly installed genealogy program Gramps as Flatpak do not follow the dark theme, but appear with a white background.
How can I solve the problem?
I managed to add a Gramps extension to provide dark mode for gramps. However, it is GTK, and would work with Advaita.
Is it possible to make it compatible with KDE Breeze dark or Inspire dark?
After some studies I found out how to deal with. In Grams settings one has to scroll horizontally to get to the tab “Themes”. There all options are available.
Now I have dark mode in Gramps too!