Examine source code of NoWatch

{
  "theme": {
    "images": {
      "theme_frame": "FirefoxHeaderImage.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#a69e9e"
    }
  },
  "version": "2.0",
  "name": "NoWatch",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/77dc875cd84b4fb9fc309b5c92f53dd22774852dd0d1fc1527d477c46997fbff/http%3A//NoWatch.net\" rel=\"nofollow\">NoWatch.net</a> a great french podcasters team.\nVisit us on <a href=\"https://outgoing.prod.mozaws.net/v1/77dc875cd84b4fb9fc309b5c92f53dd22774852dd0d1fc1527d477c46997fbff/http%3A//NoWatch.net\" rel=\"nofollow\">NoWatch.net</a> !"
}