Need name of old plugin

Hi all,

There was a Musescore plugin a long time ago that would accept MIDI input while playing a score and change the notes color depending on if you played the note correctly or not. Years ago, I heard it no longer worked..

I would be very interested in using that plugin, and would be willing to try fixing and maintaining it. Only problem is a cannot for the life of me remember the name of it!

If someone could let me know the name of it I would appreciate it greatly.