wordpresscreative on "WP Canvas Theme Changes"

Hello all,

I am using the Canvas Theme and WooDojo (and logo branding) and I wondering if and how one can change the background colors on the sides of your site to images?

These areas to be changed are to the far left of my (side) navigation bars and to the right of my content body.

Or... Do I have to leave the Canvas theme and try something else?