Examine source code of Forest_f

{
  "theme": {
    "images": {
      "theme_frame": "forest_gora.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Forest_f",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/73b7f6803d3d3b973c1411383463a6fd01fd797e36a2afbfc847c0b706cbf62c/http%3A//manapi.deviantart.com/gallery/3993510%3Foffset=24%23/d1qt0d6\" rel=\"nofollow\">http://manapi.deviantart.com/gallery/3993510?offset=24#/d1qt0d6</a>"
}