I am trying to change my GTK theme via gnome tweaks buy that is no actual option to change the Theme via the appearance tab. I believe it is now listed under “legacy” and while the command line lists that my GTK theme is indeed changed to Material Black (the one I downloaded) the system windows still look like the default system settings. What is going on here
Since Gnome 40, you cannot change window theme via gnome-tweaks. You have to mess around with gtk.css file and manually edit it. I am sure there is easier way but I never looked into it.
Do you know of a different Desktop Environment that allows for more of a pure black theme?
Other than gnome, I don’t think there is any DE that restrict theming. You can go with Plasma, if you want to use GTK theme then there is Budgie, Cinnamon and Xfce.
Fun fact: Budgie on Solus used to be default using Plata-Noir which is material design inspired theme with pure black color scheme. It is not anymore becase the theme got unmaintained.
I just REALLY want a pure black theme and apparently Gnome with Ubuntu is not the answer
Just install XFce (no need to reinstall the OS). XFce is very themeable.