Examine source code of Madagaskar Shells

{
  "theme": {
    "images": {
      "theme_frame": "shells_top.jpg"
    },
    "colors": {
      "frame": "#c7c7c7",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Madagaskar Shells",
  "manifest_version": 2,
  "description": "Shells and coral parts on a beach of Madagascar. "
}