diff -r 000000000000 -r 6474c204b198 addon-sdk/source/lib/sdk/ui.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/addon-sdk/source/lib/sdk/ui.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+'use strict';
+
+module.metadata = {
+  'stability': 'experimental',
+  'engines': {
+    'Firefox': '> 28'
+  }
+};
+
+exports.ActionButton = require('./ui/button/action').ActionButton;
+exports.ToggleButton = require('./ui/button/toggle').ToggleButton;
+exports.Sidebar = require('./ui/sidebar').Sidebar;
+exports.Frame = require('./ui/frame').Frame;
+exports.Toolbar = require('./ui/toolbar').Toolbar;