diff --git a/src/Gemini/Framework/ShaderEffects/Converters/IsNullConverter.cs b/src/Gemini/Framework/ShaderEffects/Converters/IsNullConverter.cs
new file mode 100644
index 00000000..3faa4a96
--- /dev/null
+++ b/src/Gemini/Framework/ShaderEffects/Converters/IsNullConverter.cs
@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+
+namespace Gemini.Framework.ShaderEffects.Converters
+{
+ // From https://github.com/MahApps/MahApps.Metro/blob/9c331aa20b2b3fd6a9426e0687cfc535511bf134/MahApps.Metro/Converters/IsNullConverter.cs
+
+ ///
+ /// Converts the value from true to false and false to true.
+ ///
+ public sealed class IsNullConverter : IValueConverter
+ {
+ private static IsNullConverter _instance;
+
+ // Explicit static constructor to tell C# compiler
+ // not to mark type as beforefieldinit
+ static IsNullConverter()
+ {
+ }
+
+ private IsNullConverter()
+ {
+ }
+
+ public static IsNullConverter Instance
+ {
+ get { return _instance ?? (_instance = new IsNullConverter()); }
+ }
+
+ public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+ {
+ return null == value;
+ }
+
+ public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+ {
+ return Binding.DoNothing;
+ }
+ }
+}
diff --git a/src/Gemini/Gemini.csproj b/src/Gemini/Gemini.csproj
index c99da540..e12fa04e 100644
--- a/src/Gemini/Gemini.csproj
+++ b/src/Gemini/Gemini.csproj
@@ -1,4 +1,4 @@
-
+
Debug
@@ -149,6 +149,7 @@
+
@@ -472,7 +473,6 @@
-
@@ -484,4 +484,4 @@
-->
-
\ No newline at end of file
+
diff --git a/src/Gemini/Themes/VS2013/Controls/Window.xaml b/src/Gemini/Themes/VS2013/Controls/Window.xaml
index 242a8eef..62941d99 100644
--- a/src/Gemini/Themes/VS2013/Controls/Window.xaml
+++ b/src/Gemini/Themes/VS2013/Controls/Window.xaml
@@ -1,8 +1,12 @@
-
+
+
+