I'm not refering to the fcw map files, but I can import pngs and use them to show grasslands, rough terrain, etc.http://crestar.drivein-jim.net/crestar/ ... w-vale-map
is made up of pngs of different textures and colors to represent hills, brush, etc.
I guess I don't understand. I may need to let someone else take over on this question. Here's what you said at the beginning:
I've made maps with colors standing in for forests, sand, grasslands, etc.
Why do they need to be bitmap fills for MapTools ?
But that doesn't make any sense to me: go to the paint tool, select a shape (such as Rectangle), select the fill color (which can be a texture or a solid color), and then draw.
It seems pretty obvious to me, so there's likely some other detail I'm missing.