Please look at this development page dev page - calendar issue
Look at the calendar on the right. Specifically November 13.
I would like to change the background color of certain calendar dates, without having to modify the underlying html (which is generated by a component that I can't change).
If possible, whenever a class extcal_busylink is inside a td class extcal_daycell, I would want the td class extcal_daycell to be a different background color.
For testing, let's make that background color yellow.
For example it would look like November 11 but with a yellow background. November 11, however is a td class named extcal_todaycell.
As I write this question I think it is indeed possible, since similar coloring was done for November 11.
Looking forward to hopefully a solution!