you would have to edit every forest tile and change the walkmesh and replace the value that uses the dry floor to grass
This sounds like a lot of work. But I really want to do this
After I seen this screen shot
I would love to have this look for my woods.
So this is what I am aiming for. I think biorural.hak grass combined with bioforest.hak would get me really close.
Edit: I just don't know how to do what all you just said I will need to do. '>