A suggestion to all those that like to customize your readers: After seeing the file kBookAssets.png I wonder if you could also change the black bar on the bottom of the reader's screen: Maybe turning it to grey, adding your name to it or even using a small pattern or image. It seems that it would work (and make a lot of difference, huh?).
But.... I wonder if we could turn it off and use ALL precious screen space for reading!