Examine source code of Fire Flower

{
  "theme": {
    "images": {
      "theme_frame": "firef.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#030303"
    }
  },
  "version": "2.0",
  "name": "Fire Flower",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/afbf3f4ad4efa4ebbdc2882e8ba74ccf6027ad842e77efeb05014ba5b465aff8/http%3A//www.colourlovers.com/pattern/930339/fire_flower\" rel=\"nofollow\">http://www.colourlovers.com/pattern/930339/fire_flower</a>"
}