Proton Calendar - Color Labels for events
Allow for individual color labels for each event separate from the default Calendar color, It helps certain events stand out from others when you are looking at a calendar full of events. This is present in Google Calendar but not on Apple Calendar.
I agree with this post. It's the only way I will leave Google calendar behind. I hate Apple Calendar, and those stupid dots too. I need to be able to glance at the calendar and know what I have going on.