Examine source code of Kanopolis Sunset

{
  "theme": {
    "images": {
      "theme_frame": "sunset.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#f3823e"
    }
  },
  "version": "2.0",
  "name": "Kanopolis Sunset",
  "manifest_version": 2,
  "description": "Kanopolis Lake, Kansas, 1 December 2007. Sunset through the trees."
}