Here's a workaround that may help. Close your settings app then run these commands in your terminal
gsettings reset org.gnome.desktop.interface gtk-theme gsettings reset org.gnome.desktop.interface icon-theme Then open the Settings app and set your preferred theme. ** Changed in: gnome-control-center (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1988246 Title: Keeps reseting appearance to light mode theme every background-panel load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1988246/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs