Only the rarest seedlings will have any color other than green with the occasional yellow splotches and/or veins. If you're lucky, you'll get a seedling that colors out, but very slowly. I have a bunch of what appear to be "Fred Sanders" seedlings - same leaf shape, but all green with a few yellow dots here and there. I've gotten "Gold Dust" and "Banana" from seedlings, as well, but who cares?
I do have these two seedlings, in a pot (but rooted through the bottom) that have finally developed color. The solid green one, on the right, has leaves over a foot and half long. The leaf shape is identical to the "Kentucky", 8' feet away, that bloomed several years ago.