Examine source code of Bugatti Veyron Midnight

{
  "theme": {
    "images": {
      "theme_frame": "bugattiveyronfirefox200x3someodd.jpg"
    },
    "colors": {
      "frame": "#a1a1a1",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Bugatti Veyron Midnight",
  "manifest_version": 2,
  "description": "Orange 2011 Bugatti Veyron Persona, made with GIMP 2.6\nno copyright infringement intended.\nmade for entertainment purposes only."
}