Examine source code of Katy Perry Hot

{
  "theme": {
    "images": {
      "theme_frame": "KatyPerry4.jpg"
    },
    "colors": {
      "frame": "#b4b4b4",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Katy Perry Hot",
  "manifest_version": 2,
  "description": "American Katy Perry rose to fame with the release of her second single \"I Kissed a Girl\" in 2008."
}