Examine source code of Wolpertinger

{
  "theme": {
    "images": {
      "theme_frame": "firefox-persona-wolpertinger-header4.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Wolpertinger",
  "manifest_version": 2,
  "description": "Quoted from Wikipedia: 'The Wolpertinger (Crisensus bavaricus) is a fictional animal said to inhabit the alpine forests of Bavaria in Germany. It has a body comprised from various animal parts – generally wings, antlers, tails and fangs, all attached to the body of a small mammal. The most widespread description is that of a horned rabbit or a horned squirrel.\""
}