Examine source code of blue Whirl

{
  "theme": {
    "images": {
      "theme_frame": "Persona1.jpg"
    },
    "colors": {
      "frame": "#000cf7",
      "tab_background_text": "#0dc8fc"
    }
  },
  "version": "2.0",
  "name": "blue Whirl",
  "manifest_version": 2,
  "description": "the whole pic is uploaded to <a href=\"https://outgoing.prod.mozaws.net/v1/c7fa5da4fec9bbceddae96c6692ec8914851f8239a6d9833cf5b029d4d8ff2a1/http%3A//www.bilderhoster.net/img.php%3Fid=ywvf5dj1.jpg\" rel=\"nofollow\">http://www.bilderhoster.net/img.php?id=ywvf5dj1.jpg</a>"
}