Is your feature request related to a problem? Please describe.
To make it clearer we could add
[x] legends about the overlay colors (#208)
[x] The display of the legends could also be conditional to the choice: no black legend for overlays, no color legend for paths. #234
[x] Meaning of the color/thickness code for overlays
In the legend, the two color blocks (green/red) should come with a label (activities, transitions (or paths)). See #233
Green and red have meanings of "Good, Right, Ok" for green and "Bad, Wrong, Error" for red. Plus, color blind people may have a hard time making the difference.
Another pair of colors would be better. #236
[ ] legends about what the path stroke width means
Is your feature request related to a problem? Please describe. To make it clearer we could add