Examine source code of McDuff Pond

{
  "theme": {
    "images": {
      "theme_frame": "McDuffPondHeader.jpg"
    },
    "colors": {
      "frame": "#1c3309",
      "tab_background_text": "#ffcc99"
    }
  },
  "version": "2.0",
  "name": "McDuff Pond",
  "manifest_version": 2,
  "description": "This is a beautiful panorama of a little wooded pond as spring gives birth to fresh greenery.  Enjoy."
}