probably it almost the same way as styles.
but we also can choose the template file.
Styles template is only limited to color, but not in layout (except in header/footer).
So, it will be nice if Infopop, or any other hackers to make this kind of modification, so admin can choose the template of layout(@ ubb/Templates/*.pl)
excuse my english, hopefully my explanation is clear enough ^_^
Ja nE