Filter and highlight events based on tag

Two more thoughts / requests…

We have an Events category, and we use discourse post event enabled to have a category-level calendar populated from the posts.

We also use tags a lot, so it would be nice to:

  1. Be able to filter on a tag and have the calendar display only the filtered events (currently it vanishes altogether)
  2. Colour events in the calendar by tag (similar to how the staff-holiday calendar uses multiple colours)