I came across this chart. I guess it is for limit Texas Hold'em, preflop betting strategy. R=Raise, C=Call etc. I don't understand the yellow entries like "C>4" and "R<2". What do they mean?
Addition: Why do I think this is limit Texas Hold'em? Because it is talking about caps, see bottom line: "CAP = Against a cap". In limit games, after 1 bet and 3 raises, no further raise is allowed typically. I read the four columns in the chart as "NR = against a bet", "R = against a bet and a raise", "RR = against a bet and 2 raises", "CAP = against a bet and 3 raises".