Examine source code of Word Cloud

{
  "theme": {
    "images": {
      "theme_frame": "juria_yoshikawa.jpg"
    },
    "colors": {
      "frame": "#5698ba",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Word Cloud",
  "manifest_version": 2,
  "description": "A whirling storm of words and letters made in second life. From the virtual art of Juria Yoshikawa. <a href=\"https://outgoing.prod.mozaws.net/v1/541acbe2980b200439131a1201015d2aa43cc5a4cc2d91db099baca11780ce9d/http%3A//juriayoshikawa.blogspot.com/\" rel=\"nofollow\">http://juriayoshikawa.blogspot.com/</a>"
}