Comment 22 for bug 844081

I've started with some implementation of this. The simple case is easy, where it's just one wallpaper with default settings.

But I'm assuming our goal is seamlessness. So that when you log in, you see the same exact wallpaper (minus dots and branding obviously).

That means that for full integration, we would need to support the following features (modifiable via the Appearance panel):

A) One wallpaper
B) Multiple wallpapers, transitioning at times defined in an XML file (see /usr/share/backgrounds/contest/background-1.xml)
C) One solid color
D) A vertical color gradient
E) A horizontal color gradient

And for the wallpaper cases, we'd need to support possible modes like "zoom", "centered", "stretched", etc. (only modifiable via gsettings right now).

I'll start looking into this broader scope soon, but if there is a smaller target we want to hit for 12.04, let me know.