Examine source code of Toothless fly by night

{
  "theme": {
    "images": {
      "theme_frame": "Untitled-1.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#aaaaaa"
    }
  },
  "version": "2.0",
  "name": "Toothless fly by night",
  "manifest_version": 2,
  "description": "Toothless from \"How to train your dragon\" movie, as drawn by me. Original picture on my website at <a href=\"https://outgoing.prod.mozaws.net/v1/1ac2cb3f47c172547b4a6a8688d5240b524694221aa2c20e6a085341c33f7901/http%3A//Taliesinstudio.com\" rel=\"nofollow\">Taliesinstudio.com</a>"
}