Examine source code of Stone Rune

{
  "theme": {
    "images": {
      "theme_frame": "successcopy.jpg"
    },
    "colors": {
      "frame": "#002a59",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Stone Rune",
  "manifest_version": 2,
  "description": "Rock background by: Y-Z ( <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/d46347709687862986abb349c3c7f93e26045e0314b2ffddf554e532d8e615a9/http%3A//www.freeimageslive.co.uk/users/y-z\">http://www.freeimageslive.co.uk/users/y-z</a> )\n\nEditing and design by me."
}