I am trying to add 14+ different colors into the stock Calendar application on SharePoint online. I am happy to work within the CSS to do this, but I want 14 different colors, I'd like to choose these colors, and I would like them to display just as they would in a regular color-coded calendar overlay.
What I need: 14> colors that I can preset to different categories using the Calendar overlay option within the SharePoint stock Calendar.
What I don't need: I know how to overlay, and I know about the 9 basic colors. I would also be open to learning how to change these 9 preset colors, but so far I have only found help for on-premise SharePoint servers, not SharePoint Online.