Realtree Max-1 vs Advantage Max-1

I always assumed these were the same patter from Realtree however, after ordering some gear from different brands they seem to be different? The realtree (REALTREE Max-1 printed on clothing)has a much more green color to it. The others (simply marked advantage max-1) have much more brownish and earth tones to them. The overall pattern is generally the same but they do look completely different next to each other. Does anyone have any other info or thoughts on this?