I want to create a new Genesis child theme for my site. I have a handle on using hooks and filters to control the presentation of the site's content, which is currently based on the Prose theme. But I don't know where to define the appearance of the new theme's background.
I have a specific design in mind with separate backgrounds for the header, content, and footer areas. Those three tiled backgrounds need to fill the entire width of the screen. See http://www.jigsawexplorer.com/home.html
. Can someone tell me how to achieve that with Genesis? Or, is there a tutorial somewhere that covers this?