watermark or image in a whole CList.

[Luis rosa <luis viaxxi pt>]

Hello!

I would like to know if its possible
to make an watermark or put an background image in a CList.
I know I can do that for individual cells, but for the whole CList it's 
hard to make an algorithm to divide an existing bitmap into the existing cells. 
(I guess this could be a way of implementing this)

thanks for everything

Luis ROsa