Why is dark theme light?

Desktop
1

When I select dark mode, the sidebars are dark but the backgrounds are light. This persists across a number of applications. When steps can I take to remedy this? Thanks!

Screenshot From 2025-09-05 20-55-16
Screenshot From 2025-09-05 20-55-161228×801 103 KB

2

It would seem to me that you have some customization in place.

Check if:

  • the environment variable GTK_THEME is being set. If so, unset it.
  • the file ~/.config/gtk-4.0/gtk.css exists. If so, delete it.
3

What distribution are you using, and is it the defaults or have you changed anything with regard to the theme or similar?

4

Deleting gtk.css fixed it, thanks!