Installing package mate-themes in Leap 15.3

I want to install themes from the Mate desktop in my Leap 15.3 system. software.opensuse.org shows the following possibilities: openSUSE Tumbleweed Leap 15.2 Factory RISCV Backports for SLE 15 SP3 Backports for SLE 15 SP2 Backports for SLE 15 SP1 Backports for SLE 15 Backports for SLE 12 SP4 SUSE SLE-15-SP1 Debian 9.0 (!?) Since there is no package for Leap 15.3, would it be better to install the Leap 15.2 or the Tumbleweed package? Leslie -- Operating System: Linux Distribution: openSUSE Leap 15.3 x86_64 Desktop Environment: Trinity Qt: 3.5.0 TDE: R14.0.10 tde-config: 1.0