Backgrounds Extended gives you or your client full control of your background without the need to create page attributes. Take full control of you background within C5: Slideshow, Single Image, Pattern, or Color. Uses backstretch by Scott Robbin.
Use in a global area for Sitewide Backgrounds or a normal area for per page backgrounds.
Update 1.2.4 - february 28, 2013
Fixed a minor issue with 'Slideshow' option.
Update 1.2.3 - January 12, 2013
Fixed a minor issue with 'Single Image' option.
Update 1.2.2 - December 15, 2012
Block now loads js and/or styles to the website footer with all other scripts for performance increases. Now works with optimisers like miser and tinifier for example.
Update 1.2.1 - December 13, 2012
Fixes installation error that occurs on some server environments.
Update 1.2 - December 03, 2012
Ability to specify block-level element(s).
Example: body, #featured
The same BE block instance will affect both 'body' and '#featured' block-level elements.
Or use multiple blocks per page.
Update 1.1 - September 15, 2012
Randomize slideshow option added.