Examine source code of Gifin.org

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Gifin.org",
  "manifest_version": 2,
  "description": "The must-have Animated gifs theme of 2018! The easiest way to search: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/95d83f37925081839a468f3b02cdf4b6957ff41798cb27e9b07c69418d7a97a7/http%3A//www.gifin.org\">http://www.gifin.org</a>"
}