Examine source code of Snow Leopard

{
  "theme": {
    "images": {
      "theme_frame": "SnowLeopardFirefox.jpg"
    },
    "colors": {
      "frame": "#faf5f5",
      "tab_background_text": "#faf7f7"
    }
  },
  "version": "2.0",
  "name": "Snow Leopard",
  "manifest_version": 2,
  "description": "Snow Leopard"
}