Make UI theme aware

ZuneModdingHelper/MainWindow.xaml

@@ -8,8 +8,7 @@
                  xmlns:mah="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
                  mc:Ignorable="d"
                  Title="Zune Modding Helper" Height="450" Width="800"
-                 Loaded="Window_Loaded"
-                 Background="#F0F0F0">
+                 Loaded="Window_Loaded">
     <Grid>
         <Grid.RowDefinitions>
             <RowDefinition Height="*"/>
@@ -57,7 +56,7 @@
                     Grid.RowSpan="2" Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center" Margin="4"/>
         </Grid>
 
-        <Border x:Name="ProgressBorder" Padding="8" Margin="8" Background="White" Visibility="Collapsed" Grid.RowSpan="2">
+        <Border x:Name="ProgressBorder" Padding="8" Margin="8" Visibility="Collapsed" Grid.RowSpan="2">
             <Grid>
                 <StackPanel Margin="50,8,50,8" VerticalAlignment="Center" HorizontalAlignment="Stretch">
                     <TextBlock x:Name="ProgressDesc" Text="Preparing..." FontSize="14" FontWeight="SemiBold"

ZuneModdingHelper/MainWindow.xaml.cs

@@ -1,4 +1,5 @@
-using MahApps.Metro.Controls;
+using ControlzEx.Theming;
+using MahApps.Metro.Controls;
 using OwlCore.AbstractUI.ViewModels;
 using System;
 using System.Collections.Generic;
@@ -26,6 +27,9 @@ namespace ZuneModdingHelper
         public MainWindow()
         {
             InitializeComponent();
+
+            ThemeManager.Current.ThemeSyncMode = ThemeSyncMode.SyncWithAppMode;
+            ThemeManager.Current.SyncTheme();
         }
 
         private void Window_Loaded(object sender, RoutedEventArgs e)