A follow-up to the one posted earlier. For I am a piano roll man. Here’s a grey option (not as dark grey as the default one by Apple) and a bright one (not as bright as the default bright one).
Also, the playhead is a little bit whiter in this version. Nothing else has been changed. Based on the 10.0.5 Resources file (do not try to use with earlier versions).
See the last post for installation instructions.