Rehearsal Marks
In the past, i was able to edit properties of rehearsal marks in a small window, specifically the box around the mark. I remember being able to change the shape of the box, the radius, and even getting rid of the box altogether. It would be nice to use the old feature again, that way emphasized rehearsal marks can be distinguished from less important ones
Comments
Nowadays those changes are made using the Inspector (shortcut is F8).
Select the rehearsal mark, and one can adjust shape, corner radius, thickness, etc.
See:
https://musescore.org/en/handbook/inspector