Examine source code of Mozilla Firefox Orange

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_LABS.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Mozilla Firefox Orange",
  "manifest_version": 2,
  "description": "Mozilla Firefox Orange with \"Mozilla Firefox\" text on the status bar.\n\nBest Persona Evar!"
}