Sync 3.4 True Black Theme

Has anybody flashed a sync 3.4 build with a true black theme?
I rode in my old bosses 2020 gt500 and his sync 3.4 had a black theme.
That ride prompted me to upgrade my 16gt. I’ve asked him for the build information but he hasn’t gotten back to me.
I do remember he uses apple carplay but I don’t think that overlaid the black theme as the oem ribbon at the bottom is what i remember having black buttons with dark blue line button dividers.

Alternatively, has anyone at Cyanlabs considered creating a black theme and adding it to the updater tool they developed?

Any custom theme would be a modification and require jailbreak, this is not supported by cyanlabs try over at

/Closed for legal reasons