I will buy solid pants if they are 10 bucks less than the camo version (which is common) I think if an animal sees you for what you are based on solid colored pants, you didn't have a chance to begin with.... I don't think it matters even a little bit.
I also don't put much into camo patterns for my tops, i'm always mis-matched, and if I find an article I want in a pattern I wouldn't choose, i'll buy it because of my confidence in it not mattering one bit.
I have been close to bunches of critters in all different patterns, cannot think of one time being busted because of camo or lack of.
it may matter some places, but mostly not... sitka's treestand pattern is bright and blue and people kill lots of deer in it, and that's a color normally avoided in the woods, haha.
I don't like any sitka patterns, but I like some of their clothing articles so I own a good amount.... I like darker earth tone bottoms, like the first lite pine, but not particular enough to really care much