Examine source code of Snowy Leopard

{
  "name": "Snowy Leopard",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "SnowLeopardH.jpg"
    },
    "colors": {
      "frame": "rgba(176, 174, 189, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(179, 176, 191, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(179, 176, 191, 0.08)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ef2660c3-6f76-4bea-b3a2-b6b78d351c8f}"
    }
  }
}