Little window utility?

[Donna Luder]

Does anyone know of a small utility that would let me set the 
background color of a window and child windows spawned from the parent? 
  Sometimes I have multiple disks mounted on my computer and when I am 
moving back-up copies of files and updated copies of files, I get 
confused as to just which disk I am looking at.  I know I could set the 
View in the window to the hierarchical view, but then it's another 
mouse-action to shift all the way over the left pane and see which disk 
I have buried myself in.  Does this make sense?  It would be so easy if 
I could set my hard-drive window and all of its children to pink, and 
the mounted network volume to green and my backup firewire drive to 
yellow.  (For instance. ;-) )
MTIA--
Donna