Examine source code of GeneRally

{
  "theme": {
    "images": {
      "theme_frame": "generally_persona_header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "GeneRally",
  "manifest_version": 2,
  "description": "GeneRally persona\n\nGeneRally oficial website :\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/ffbb3702e57646b5c26e60bda4bed4e8f61b9da08f77cd4fac5101f4911142cc/http%3A//generally.rscsites.org\">http://generally.rscsites.org</a>"
}