gnome-shell-extension-user-theme from home:mantarimay:GNOME project

Select Your Operating System

For standard run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:mantarimay:GNOME/standard/home:mantarimay:GNOME.repo
zypper refresh
zypper install gnome-shell-extension-user-theme