gnome-shell-extension-appindicator from home:alstigro:packages project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:alstigro:packages/openSUSE_Tumbleweed/home:alstigro:packages.repo zypper refresh zypper install gnome-shell-extension-appindicator