[Xmonad] darcs patch: make createNewWindow set background and foreground to ...

Hi all, Here's a very minor cleanup. It doesn't really help much just yet, but will allow considerable simplification of DragPane. But maybe the complexity was added because someone wanted drag handles that aren't a solid color? David Mon Oct 8 08:52:06 EDT 2007 David Roundy * make createNewWindow set background and foreground to a given color. This means we don't need to draw colors that are this color. Also speeds up redrawing, since the X server can do all the drawing on its own, without talking with xmonad.