Examine source code of Tuning AG v2

{
  "theme": {
    "images": {
      "theme_frame": "AGHeader2.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#bab6b6"
    }
  },
  "version": "2.0",
  "name": "Tuning AG v2",
  "manifest_version": 2,
  "description": "Tuning AG\n<a href=\"https://outgoing.prod.mozaws.net/v1/803b30143ec4b56466d255b0535c6b927233b6ecdb8127e92e227cde694e6aa5/http%3A//tuningag.freeforums.org\" rel=\"nofollow\">tuningag.freeforums.org</a>"
}