[Calendar] Special dates

[Robodriguez]

Hi,

I would like to be able to put a list of special dates (national holidays) that are displayed in a special way on the corresponding days of the calendar in all its views.

Like you can configure in Recalendar: https://recalendar.me/create

[gaborauth]

You can add it to your Google Calendar itself, like this:

And the application will display holidays: