Examine source code of Avatar sketch

{
  "theme": {
    "images": {
      "theme_frame": "sketch_header.jpg"
    },
    "colors": {
      "frame": "#565578",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Avatar sketch",
  "manifest_version": 2,
  "description": "hello friends, please visit my website: <a href=\"https://outgoing.prod.mozaws.net/v1/d398973b6b7272848ceaaceae7998894fec4e85618b00e22f0ee7f1d4ea68878/http%3A//www.stepanovic.com\" rel=\"nofollow\">http://www.stepanovic.com</a>  avatar, science fiction, monster bird, sky, dinosaur, movie, film, story, pandora, animated, animal, beach, palms, trees, forest, ocean, sea, pacific, atlantic, leafs, palm, bora bora, hawaii, sunset, sunrise, sun, water, life music"
}