If I was you, I wouldn't mess with the game. If you do something wrong when/if you download it, and you change something. (You don't have any experience on how it works, I mean) By accident, you might mess up the game.
Oh and you can't change the wolf fur colours, they have a specific colour for each wolf that can be either: black, (more like a dark grey though) grey, brown and red. Just in case you didn't know.