Just discovered this today and it's super cool!
I was wondering though, if I wanted to add a new type of tile, how would I go about doing that? Not actually importing the tile, but setting up how often it's made, how much of it there is, and what it gets made next to.
I set up a little prototype thing, and I've got a guy that can run around in the world, and he goes slower when he's on the blue tiles, like he's swimming. It's pretty laggy, since I'm checking what tile he's over every frame, but I haven't figured out how to check that without making it lag like crazy.