Idea Summary
Add a declarative option to add events (holidays) to the calendar. 

Many applications have a table with all the (local) holidays. And sometimes some additional special days. It should be possible to show these days on the calendar region.

Preferred Solution (Optional)
The new APEX Calendar component ist based upon fullcalendar.js.  This allows to use full day background events. Which are treated differently from normal events. Preferably we could provide a select statement that gives the “day”, “event type”, “name of event” and adds this as background events to the calender.

Also the styling (background color) should be accessable via some css based styling options. So that different event types (official holidays, custom company day offs, etc.) can be shown in a different color.