I'm not sure just how much fish see. Do you really think that a bass looks at a crankbait and says "this bait has no fins painted on it, don't think I'll react"? Lots of lures are painted fancy to sell us fishermen. Basic color, action and a good presentation dictates whether the fish reacts. Many times while ledge fishing I've seen the angle of the cast make all the difference, little small things that we often overlook as fishermen.