Fix defaulting warning with A.RandomBackground
Fix defaulting warning with A.RandomBackground

Ignore-this: 55dddcc134aa173d2c8e015fc462ff99

darcs-hash:20090716234955-1499c-07b855977f83d0898150dbf173c07a8ee9466971

yzhou61/xmonad-contrib,yzhou61/xmonad-contrib,yzhou61/xmonad-contrib