Examine source code of Agra Monkies

{
  "theme": {
    "images": {
      "theme_frame": "Forefoxmonkeys.jpg"
    },
    "colors": {
      "frame": "#45291c",
      "tab_background_text": "#cc4210"
    }
  },
  "version": "2.0",
  "name": "Agra Monkies",
  "manifest_version": 2,
  "description": "I took these pictures on a recent trip to Agra, India"
}