Examine source code of Ragnaros

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Ragnaros",
  "manifest_version": 2,
  "description": "I used this one as source picture to create this theme.\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/a186df46d19d284d6cfcd03bd133de1bb486f2c26c1b2a3ca96c5e130ed1af5a/http%3A//media3.hearthstonehungary.hu/mar14/ragna.jpg\">http://media3.hearthstonehungary.hu/mar14/ragna.jpg</a>"
}