Rated 4 out of 5 stars

I like this add-on a lot, but there doesn't seem to be a way to specify the colors yourself. Or am I missing something?

This review is for a previous version of the add-on (3.0). 

Calendar Tweaks 5.0 allows user customization of 'Today' and 'Selected Day' colors (header background color, day box background color, and border color).