Examine source code of InSectHunter

{
  "theme": {
    "images": {
      "theme_frame": "dragonfly.jpg"
    },
    "colors": {
      "frame": "#f0dfdf",
      "tab_background_text": "#bfb5b5"
    }
  },
  "version": "2.0",
  "name": "InSectHunter",
  "manifest_version": 2,
  "description": "This is an image of the dragonfly up close from the back. It is my most fav in Flickr."
}