Examine source code of Shamrock Shakedown

{
  "theme": {
    "images": {
      "theme_frame": "fractal-h1.jpg"
    },
    "colors": {
      "frame": "#ff9966",
      "tab_background_text": "#ffffcc"
    }
  },
  "version": "2.0",
  "name": "Shamrock Shakedown",
  "manifest_version": 2,
  "description": "Shamrocks for St. Patrick's day or just to show your  Irish Pride."
}