Changing color of bars

[dorienh]

Hi,

Thanks for the great fork! I am using this together with the musicxml parser, but I have some trouble finding out something.

I want to color bars (to create a sort of score follower as music plays). I noticed that there are html tags for each bar (viewer_mX), but they are empty. See my demo: http://dorienherremans.com/imma/demo/test.html

Is there an easy way in the API or html that would allow me to put a colored layover over particular bars?

Thanks!