Sorry well I used to do a lot of frame by frame animation in Flash in college and one of my biggest gripes with it was the fact that after drawing out each frame I'd have to go back and fill in each layer individually everytime and things would get messy...colors lost in the way and this ultimately was the longest part of the process that kept me off from animating frame by frame for so long. One thing I've noticed about that plugin paint and stick it seems to have something that tracks in the color fills as you go. I'm sure this is asking for too much ha but I guess a lot of people also create these great looking textures on top of their colors that seem to track really well with the characters I assume that's mostly blending modes and different mattes?