Examine source code of TopSpeed silver

{
  "theme": {
    "images": {
      "theme_frame": "_final_silver3.jpg"
    },
    "colors": {
      "frame": "#d0d0d0",
      "tab_background_text": "#8c8c8c"
    }
  },
  "version": "2.0",
  "name": "TopSpeed silver",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/54c5399b094f7e7bdc95f0d462cf660590666a07588f0c5ad0a4dbf38bdcadac/http%3A//TopSpeed.com\" rel=\"nofollow\">TopSpeed.com</a> metal silver"
}