Yeah I figured it out, thanks!Yes, it should but the process has changed.
ATTENTION:
with update to version 0.90 Synergy now works but works differently, download the "Shizuku" app and follow the on-screen instructions during installation,you will need a computer with ADB (https://kutt.it/SetupADB) to do a setup process every time you reboot your device. "Shizuku setup" is also supported for setup without computer.
With that said, there's only a couple of themes I found that support One UI 3+, Flux and Liv Dark/Light. Do you guys know of any other ones?