Modding Trapping

[UngratefulDead]

So, I'm digging into the Trapping luas and while it seems routine enough to add new animals and baits to the tables, I run into a wall when I try to add new traps. It can't be a problem with sprites because I'm only using existing sprites at this point, just trying to figure out the coding end of it. Even if I set it to use, say, the sprites for a mousetrap, and I add the new trap item (which shows up under "Place Trap") there's no sprite to place. I'm assuming I need to be editing a file other than just TrapDefinitions, but I can't seem to figure out what it is.