perl-Gtk3 from home:frispete:15.2 project
Select Your Operating System
Add repository and install manually
For openSUSE Leap 15.2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:frispete:15.2/openSUSE_Leap_15.2/home:frispete:15.2.repo zypper refresh zypper install perl-Gtk3