Examine source code of Night Moon Waterfall

{
  "theme": {
    "images": {
      "theme_frame": "DULE-Header.jpg"
    },
    "colors": {
      "frame": "#665500",
      "tab_background_text": "#e8e4c3"
    }
  },
  "version": "2.0",
  "name": "Night Moon Waterfall",
  "manifest_version": 2,
  "description": "This Mozilla Firefox Persona was created upon quick spray street painture by serbian artist \"Dule\" as it was gifted to us by the artist himself. - Enjoy!"
}