I'm never sure whether people understand me, so here's this screenshot just to be clear which game type I meant.
I tried it a bit, and it seems the default theme has some problems in the techno game type, which I was not aware of (metrics don't exist for ScreenSelectStyle, and a safely ignorable error is reported if AutoSetStyle is used, I can't remember the pad codes for changing difficulty, so I had to use the "hold select and press left/right" to change difficulty). I don't know when those problems will be fixed, there aren't many people interested in it.
Consensual partially works in techno game type, but that requires using
the latest nightly build (or building from the latest source from github if you're on linux) (and there's a small chance I forgot to commit some random file to github). The problems I saw with using Consensual are that I need to add entries to the language file to make the chart types on the difficulty selector readable, and the cursor icons on the difficulty selector are confusingly overlapped, and I'm not sure the pad codes for picking difficulty are intuitive. There are probably other problems I'm not aware of.