I can’t get themes to work on Fedora GNOME. I installed a theme following the GitHub directions and selected it from Twerks Gnome but once I restarted I still have the installed theme but it doesn’t go into dark mode and selecting other themes doesn’t change the file windows as if it was stuck. So I tried to uninstall the theme and it stays the same. Is there a way to completely uninstall the theme and install it again? And is there a way to “reset” it and bring it back to the default theme?
I’m not sure how to fix your other issues, but to reset take a look at this: how to reset gnome theme
Themeing beyond light/dark and changing the accent color isn’t really supported by GNOME because as you’ve seen it’s not very reliable and can have issues, but it can be cool sometimes. Make sure you have the user themes extension installed if you want to keep trying to use them.
I have partially solved it. I have resigned myself and use the default Fedora theme which I do not mind but I would have liked to give it a new graphic. For the rest I have installed additional extensions for the theme change. Thanks for your interest.