Just a quick heads up, there has "supposedly" been a change made somewhere that might "supposedly " break the keys in the piano roll for v1.3.0. Details: https://github.com/LMMS/lmms/issues/5843#issuecomment-743885996 I've tested out this theme in one of the alpha builds just now...

There's also another waiting PR that improves upon Carla integration and lets you control and automate any (accessible) parameters provided by a hosted plugin directly: https://github.com/LMMS/lmms/pull/5846

Can't be sure if or when it's going to be merged in but... meh?

A Pull Request that adds MIDI CC Controller automation support to LMMS has been merged. https://github.com/LMMS/lmms/pull/5581

It might be available in the next 1.3.0 alpha release.