Perhaps I'm missing something obvious, but... how do people make, say, a water autotile that's semi-transparent, and could be used over any tileset and allow you to see the ground underneath it? I've heard of people doing such a thing, but I don't really understand how. I have Photoshop, but I'm rather newbish with it, so... if someone could give me some help, I'd appreciate it. Or, if such a water autotile exists, that would be great too. ^_^