Yes, I use color marking for players, and the note I make starts with the type of game played and how a certain hand played out.
I have 10+ colors and player types, like: calling station, TAG, nit, maniac, floatable etc.
Example of a note I make while playing NL10 would be:
nov18 NL10 SH 88BB, potb KQs COvsBB, cbet f, b/c t AsK3s2sT
Which means I was playing this month, NL10 and villain having 88BB stack opened KQs from CO, cbetted the flop cbet-called the turn and checked river bh when the board was AK32T and the turn was the third suited card.
When playing mtt's I also note the blind level.