Index: src/DeltaShell/DeltaShell.Plugins.ProjectExplorer/Ribbon.xaml.cs
===================================================================
diff -u -r8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9 -r5fc71a385897af92ccb092f2f969b5709afab85a
--- src/DeltaShell/DeltaShell.Plugins.ProjectExplorer/Ribbon.xaml.cs	(.../Ribbon.xaml.cs)	(revision 8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9)
+++ src/DeltaShell/DeltaShell.Plugins.ProjectExplorer/Ribbon.xaml.cs	(.../Ribbon.xaml.cs)	(revision 5fc71a385897af92ccb092f2f969b5709afab85a)
@@ -11,7 +11,7 @@
     /// </summary>
     public partial class Ribbon : IRibbonCommandHandler
     {
-        private ICommand showProjectExplorerCommand;
+        private readonly ICommand showProjectExplorerCommand;
 
         public Ribbon()
         {
@@ -20,7 +20,13 @@
             showProjectExplorerCommand = new ShowProjectExplorerCommand();
         }
 
-        public IEnumerable<ICommand> Commands { get { yield return showProjectExplorerCommand; } }
+        public IEnumerable<ICommand> Commands
+        {
+            get
+            {
+                yield return showProjectExplorerCommand;
+            }
+        }
 
         public void ValidateItems()
         {
@@ -32,12 +38,15 @@
             return false;
         }
 
-        public object GetRibbonControl() { return RibbonControl; }
+        public object GetRibbonControl()
+        {
+            return RibbonControl;
+        }
 
         private void ButtonShowProjectExplorerToolWindowClick(object sender, RoutedEventArgs e)
         {
             showProjectExplorerCommand.Execute();
             ValidateItems();
         }
     }
-}
+}
\ No newline at end of file