Examine source code of Colorific Tiles

{
  "theme": {
    "images": {
      "theme_frame": "Header.jpg"
    },
    "colors": {
      "frame": "#0a0000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Colorific Tiles",
  "manifest_version": 2,
  "description": "A portion of my design \"Lights on the Ground\".\n\nView earlier designs I've created at <a href=\"https://outgoing.prod.mozaws.net/v1/696ae1e96a319353d5bfc1df725973dfef85da48a13fa2c7f5f69966aa309f02/http%3A//ergart.tumblr.com\" rel=\"nofollow\">ergart.tumblr.com</a>. Or don't. I'm not twisting your arm."
}