if its a camo blind, no need fer brushin it in...i saw a guy using a blue camping tent, the deer walked right by it and paid it no attention. the black hole is what you should be going for, the sun to your "tents" back, makes it really dark inside. you dont want the deer seeing you inside is all...a tree climber is good, keeps your scent high in the air.
just remember, in the morning, you want to be over the trail, and at night under it. gl