vertex-theme from home:simotek:base project
Select Your Operating System
Add repository and install manually
For SLE 12 SP5 Backports run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:simotek:base/SLE_12_SP5_Backports/home:simotek:base.repo zypper refresh zypper install vertex-theme