In StepMania 5, the BPM display and the Press Start text are created by Lua files.
Create a folder in your Themes folder. Name it whatever you want. Create a metrics.ini file, and place in it:
Create a BGAnimations folder inside that folder.
Copy Themes\_fallback\ScreenSystemLayer overlay\default.lua to the BGAnimations folder, rename it ScreenSystemLayer overlay.lua, then replace
in CreditsText with
Then, copy the ScreenGameplay decorations folder from default. Edit default.lua and delete this line:
That should do it.
t[#t+1] = StandardDecorationFromFileOptional("BPMDisplay","BPMDisplay");