I have updated the Facer Nuvola theme to work with Facer 3. This theme is free and can be downloaded from here. I believe that this is a complete theme. All elements have been skinned. The background image is just a gray screen, it is up to you to choose the jpeg you want for the background. If you would like to use the image seen in the screenshot you can get it from the Crystal ZLauncher theme. Note that this theme will only work with Facer 3.1 and higher.
Information on the Nuvola theme for earlier versions of Facer can be found in this post.