Examine source code of Bottoms Up

{
  "theme": {
    "images": {
      "theme_frame": "duck_butts3.jpg"
    },
    "colors": {
      "frame": "#adabab",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Bottoms Up",
  "manifest_version": 2,
  "description": "Ducks looking for food at the Colusa National Wildlife Refuge, Sacramento County, CA. Photo taken December 20, 2009."
}