Using Ruby.
I create an event with:
Google::Apis::CalendarV3::Event.new(event)
wherein I have explicitly set the colorId.
When I then do a .insert_event into a custom calendar, it will maintain the color of the calendar as opposed to the color specified in the colorId.
Looking around online, it seems that event colors are only supported for the Advanced Calendar service? If so, the documentation only shows a javascript version. Is there a ruby version?