I hate that yellow-orange dead look that the leaves and grass get in the Savannah biome or desert. It's even worse when you terraform a hot biome and then all the grass is dead, realistically it would be more yellow like an actual savannah but that's besides the point of this mod. I removed all traces of yellow from the color maps so trees are green, and logically they would be like this or they would simply die out entirely, not just be in this permanent limbo of having yellow leaves. Your world should be much prettier with this mod, at least in my opinion.