Color pattern is important with ALL models. That is one reason you see such vivid patterns on the top of trainers and usually a blank lower surface of the wint with maybe a wide stripe on one side. The ARF's aren't done that way just for pretty, it makes it easier to maintain orientation.

But the silohettes are important to think about even with good color schemes... under certain light conditions that is exactly what you will be seeing, no matter what colors were used.