Change the color of a single Calendar event

Thank you for responding to my reply.

Yes, calendars from different suppliers are not all the same.

With Apple's inbuilt calendar: If you only have one calendar you will not have a choice of colours. This is because the colour indicates which calendar the event belongs to.

If you have several calendars, you can select all of them so they all display, or choose which ones you want to display, & easily turn any of them on or off.

My own way of making an event stand out, is to double-click on the event, and change it to an "all-day" event. This is so the colour of it's calendar is displayed.

If that's not appropriate, I will add an "alert" so that will pop up as a reminder at the time I set.

There is a useful Calendar User Guide for Mac - Apple Support online.

Change the color of a single Calendar event

Seems you can easily change the color, but only to the color of an existing calendar.

(Am assuming you have more than one existing calendar)

To do that: ✽ double-click the event to open it in a small window

✽ click on the tiny up down (V) symbols at top right / beside small square of existing color

✽ choose the color of another existing calendar from the drop down list that opens

✽ click the small x at top left to close the small window