Changing Color On Event In Google Calendar

Im trying to use the advanced calendar service in Google Apps Script to change the colorId on a particular event in my calendar. So far i have been able to list and get event's an

Solution 1:

This is a bit tricky... but I found how it works :

function ChangeEventColor(){
  var calendarId = 'primary';
  var eventId = 'omv°°°°°°°°°°8jbs'
  var event = Calendar.Events.get(calendarId, eventId)
  Logger.log('current color = '+event.colorId)
  event.colorId = 11
  Calendar.Events.patch(event,calendarId,eventId);
  Logger.log('new color = '+event.colorId)
}

This post (anonymous) was very helpful