gnome-shell-extension-appindicator from home:akolyadin:opensuse 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:akolyadin:opensuse/openSUSE_Tumbleweed/home:akolyadin:opensuse.repo zypper refresh zypper install gnome-shell-extension-appindicator