Examine source code of Hungry for Firefox

{
  "theme": {
    "images": {
      "theme_frame": "LilyYawningfirefoxlargestcopy.jpg"
    },
    "colors": {
      "frame": "#556b0d",
      "tab_background_text": "#e6ed85"
    }
  },
  "version": "2.0",
  "name": "Hungry for Firefox",
  "manifest_version": 2,
  "description": "Lily a purebred female Vizsla appears to be hungry for a little foxy globe. Hungarian breed of dog, member sporting group, used for hunting birds, not foxes!"
}