Regarding camo patterns, I started with a soft gray, solid. Next to a maple or oak it works just fine. The wrinkles in the wools provides shades just like the tree bark. Later when I started using Scent Lock I used the real tree type patterns in dark green, small patterns, and got picked off a few times. Then Scent Lock released Vertigo, which is open and has gray-ish open areas, not white. I have deer stare right at me for minutes without picking me off (after I made a stupid noise with my feet or body).
As for camo on the Evolution, you don't have to wait for New Tribe to come out with a pattern, just cut up a used jacked or pants that you like into shapes that cover the leg, butt and back panels of the Evolution. Sew them on with a regular sewing machine. Its not structural so there's no need for fancy, strong sewing.
I'm doing mine in Vertigo!