We should be able to nest the subtags of Calendar to apply multiple styles to the day numbers displayed in the calendar.

For example, I define a Weekends tag that makes weekend day numbers appear in italics. Then I define an Events tag that makes day numbers with events appear in blue. At present, there is no way to make weekends with events show as blue and italics -- I have to choose either blue OR italics. I want to be able to have both styles apply to weekend events.

Here's an example of what I'm talking about. Weekends have the highest priority, so they will overpower the Events style in the root level; however, the Events directive inside of Weekends will reapply the blue so weekends with events will have both styles.

I'll try to figure out some solution for this.