I was working on a level, and made a shape out of wood and made it eletrical. However, my base floor is also wood, so it looks bad. I was wondering if there's any way to assign a different color or texture to certain pieces of wood/cardboard, etc?

If it makes any difference I'm not so far into the story mode, but I have some of the objects, contraptions, etc.

hm, not necessarily, you can change the colour with stickers. and that'll make it look different. but other than that you cant change the texture and stuff.