Default GTK theme not listed in Unity Tweak Tool and in Unity Control Center
If you change the default GTK theme, you can't change it back via Unity tweak tool or Unity Control Center because the theme isn't listed where it should.
The 17.0 major release is coming on May 16, 2024! This version brings many exciting improvements to GitLab, but also removes some deprecated features. We are introducing three breaking change windows during which we expect breaking changes to be deployed to GitLab.com. You can read more about it on our blogpost. The third breaking change window begins 2024-05-06 09:00 UTC and ends 2024-05-08 22:00 UTC.
If you change the default GTK theme, you can't change it back via Unity tweak tool or Unity Control Center because the theme isn't listed where it should.