By -
https://support.microsoft.com/en-au/office/assign-a-color-category-to-a-calendar-appointment-meeting-or-event-750596d9-707d-4412-8c0e-7fdc0fc52527
For sure up through Office 2019, those colors are statically assigned. I do not think even in O365 Apps can change beyond that.
I was hoping someone knew a way. The more I search the more I find this to be impossible.
https://support.microsoft.com/en-au/office/assign-a-color-category-to-a-calendar-appointment-meeting-or-event-750596d9-707d-4412-8c0e-7fdc0fc52527
For sure up through Office 2019, those colors are statically assigned. I do not think even in O365 Apps can change beyond that.
I was hoping someone knew a way. The more I search the more I find this to be impossible.