Examine source code of Ubuntu Sunrise

{
  "theme": {
    "images": {
      "theme_frame": "UbuntuSunrise_header.jpg"
    },
    "colors": {
      "frame": "#f0e4a3",
      "tab_background_text": "#695223"
    }
  },
  "version": "2.0",
  "name": "Ubuntu Sunrise",
  "manifest_version": 2,
  "description": "Ubuntu 3d image as a kind of \"Ubuntu rising\" theme.  Sunny, light with blocks of warm colors."
}