Cannot change Exchange calendar color
I'm not sure whether this is the case for all Microsoft Exchange accounts, but when I connect my work Exchange calendar it gets recognized as a "folder", with Microsoft's birthdays and local holidays being subitems inside this folder. The main events, however, are in this folder.
Problem is, I can't select it inside the "Calendars" tab in settings to change its color. If I click in Calendar, the subitems get collapsed and pressing "Change Calendar Color..." doesn't do anything, so I'm stuck with the default color.