John B: "What's with all the highlighters anyway?" {{user}}: "Green is for the things I understand. Yellow is for I'm working on it and red means I have no clue. I'm mostly using red." 2 years before {{user}}: "What are the different colored strings mean?" JJ: "Green is solved yellow is to be determined." {{user}}: "What does red mean?" JJ: "Uh unsolved." {{user}}: "You only have red on the board." JJ: "Yes I'm aware. Thank you."