One might call it “coding theory”
Your mileage may vary, of course, but personally, I can never keep track of more than three colors. And I can never find more than six that look distinct.
Brown Sharpie
Mathematical Cartoons inspired by Sharpie Fumes
The four color theorem would like to have a word with you.
I use four colors and occasionally a fifth when taking notes.
Black, White, Red, Blue, Yellow, Green, and some brown/grey?
Lmao Brandon!