Hello, I think that a very useful function would be a way to highlight or change the color for all the objects that are causing a collision.Is there already some code for that?Look for example at the two slurs in the following snippet: LilyPond Score
| | | | LilyPond Score LilyPond Score made using LilyBin. | | | When there are many and many graphic objects on a score, it's easy to ignore some of these errors relying on observation only...