How to color-code events in Apple Calendar. For historic reasons, calendar events canu2019t be coded by category or any other element that would allow unique color display. Mac 911 ...

In the ‘80s, X system programmers had the option to identify colors the way many developers do today: with a hexadecimal value (AKA hex value, e.g., #FFFF00) or an RGB color code (e.g., 255,255,0).