Adding the UI to the same repo. Made some default theme progress

MediaBrowser.UI/Controls/WindowCommands.xaml.cs

@@ -0,0 +1,50 @@
+using System.Windows;
+using System.Windows.Controls;
+
+namespace MediaBrowser.UI.Controls
+{
+    /// <summary>
+    /// Interaction logic for WindowCommands.xaml
+    /// </summary>
+    public partial class WindowCommands : UserControl
+    {
+        public Window ParentWindow
+        {
+            get { return TreeHelper.TryFindParent<Window>(this); }
+        }
+
+        public WindowCommands()
+        {
+            InitializeComponent();
+            Loaded += WindowCommandsLoaded;
+        }
+
+        void WindowCommandsLoaded(object sender, RoutedEventArgs e)
+        {
+            CloseApplicationButton.Click += CloseApplicationButtonClick;
+            MinimizeApplicationButton.Click += MinimizeApplicationButtonClick;
+            MaximizeApplicationButton.Click += MaximizeApplicationButtonClick;
+            UndoMaximizeApplicationButton.Click += UndoMaximizeApplicationButtonClick;
+        }
+
+        void UndoMaximizeApplicationButtonClick(object sender, RoutedEventArgs e)
+        {
+            ParentWindow.WindowState = WindowState.Normal;
+        }
+
+        void MaximizeApplicationButtonClick(object sender, RoutedEventArgs e)
+        {
+            ParentWindow.WindowState = WindowState.Maximized;
+        }
+
+        void MinimizeApplicationButtonClick(object sender, RoutedEventArgs e)
+        {
+            ParentWindow.WindowState = WindowState.Minimized;
+        }
+
+        void CloseApplicationButtonClick(object sender, RoutedEventArgs e)
+        {
+            ParentWindow.Close();
+        }
+    }
+}