Examine source code of Rio 2006

{
  "theme": {
    "images": {
      "theme_frame": "per_head2.jpg"
    },
    "colors": {
      "frame": "#aaaaaa",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Rio 2006",
  "manifest_version": 2,
  "description": "Rio 2016 - candidate city"
}