SpacesDecorator is an easy to use Mac OS X app that will allow you to customize each Space so that it is recognizably different from the others.
You can set each Space a different wallpaper. You can add SpacesDecorator to your login items so that you can have it immediately ready once after opening your mac.
SpacesDecorator resides in the status bar and it does not take your Dock`s space. SpacesDecorator fades in and out your wallpapers when you switch Spaces.
NOTE: SpacesDecorator can only be purchased via the Mac App Store (the buy link redirects you to its App Store page). To purchase/download applications via the App Store an Apple account is required.