THIS is what you guys work on all day? Not fixing bugs? Not REDUCING LAG? Just adding pretty colors to grass? Seriously; you should be fired, dude. I don't care one bit that my grass is shiny when the sun's out, I do care that I don't lag to high heaven when the sun's out....
GET YOUR PRIORITIES STRAIGHT.
I don't want pretty grass that doesn't increase lag... I want whatever you have to do to REDUCE it. Get your act together.
Fire VanGogh and hire a real game designer please.
For you, I only have one answer because any explanations would be a waste of time