Examine source code of Rhodos 2011

{
  "theme": {
    "images": {
      "theme_frame": "header_rhodos.jpg"
    },
    "colors": {
      "frame": "#a6d4fc",
      "tab_background_text": "#a5daed"
    }
  },
  "version": "2.0",
  "name": "Rhodos 2011",
  "manifest_version": 2
}