diff --git a/gui/Resources/Background.png b/gui/Resources/Background.png
new file mode 100644
index 0000000..df653e7
Binary files /dev/null and b/gui/Resources/Background.png differ
diff --git a/gui/SlunkCryptGUI.csproj b/gui/SlunkCryptGUI.csproj
index 0fafc39..7e420ed 100644
--- a/gui/SlunkCryptGUI.csproj
+++ b/gui/SlunkCryptGUI.csproj
@@ -198,6 +198,9 @@
   <ItemGroup>
     <Resource Include="Resources\Die.png" />
   </ItemGroup>
+  <ItemGroup>
+    <Resource Include="Resources\Background.png" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>
     <PostBuildEvent>copy /Y "$(SolutionDir)\etc\deps\cpu-capabilities\*.dll" "$(TargetDir)"</PostBuildEvent>
diff --git a/gui/SlunkCryptGUI.xaml b/gui/SlunkCryptGUI.xaml
index 22a2280..be81bda 100644
--- a/gui/SlunkCryptGUI.xaml
+++ b/gui/SlunkCryptGUI.xaml
@@ -35,6 +35,8 @@
         <BitmapImage x:Key="ImageSource_TabHd1" UriSource="Resources/Tab_Encrypt.png"/>
         <BitmapImage x:Key="ImageSource_TabHd2" UriSource="Resources/Tab_Decrypt.png"/>
         <BitmapImage x:Key="ImageSource_TabHd3" UriSource="Resources/Tab_LogFile.png"/>
+        <BitmapImage x:Key="ImageSource_Bkgrnd" UriSource="Resources/Background.png"/>
+        <ImageBrush x:Key="Brush_Bkgrnd" ImageSource="{StaticResource ImageSource_Bkgrnd}" TileMode="Tile" ViewportUnits="Absolute" Viewport="0,0,145,145"/>
         <FontFamily x:Key="Monospace">pack://application:,,,/Resources/Fonts/#Hack</FontFamily>
         <utils:FontSizeConverter x:Key="SlightlySmallFont"  Ratio="0.875"/>
         <utils:FontSizeConverter x:Key="SlightlyLargerFont" Ratio="1.125"/>
@@ -46,7 +48,7 @@
     </Window.TaskbarItemInfo>
 
     <StackPanel Style="{StaticResource WaitCursorWhileBusy}" Background="Transparent">
-        <Grid Background="	#2A3439">
+        <Grid Background="{StaticResource Brush_Bkgrnd}">
             <Image Source="{StaticResource ImageSource_Banner}" Stretch="None" MouseLeftButtonDown="Image_MouseLeftButtonDown" Name="Banner"/>
             <Canvas x:Name="Canvas" IsHitTestVisible="False" Visibility="{Binding IsBusyIndicatorVisible, RelativeSource={RelativeSource FindAncestor, AncestorType=Window}, Converter={StaticResource VisibilityConverter}}" Width="{Binding Path=ActualWidth, ElementName=Banner}" Opacity="0.8"/>
         </Grid>