Examine source code of Chattchitto Blackout

{
  "theme": {
    "images": {
      "theme_frame": "CCHeaderWhite.jpg"
    },
    "colors": {
      "frame": "#8f8d8d",
      "tab_background_text": "#fcf7f7"
    }
  },
  "version": "2.0",
  "name": "Chattchitto Blackout",
  "manifest_version": 2,
  "description": "Designed around the <a href=\"https://outgoing.prod.mozaws.net/v1/d4a089b896dd5c545b7385fd2dfaf4c66eea43341a1d52949dbf95df212033c9/http%3A//chattchitto.com\" rel=\"nofollow\">chattchitto.com</a> logo."
}