diff --git a/src/MahApps.Metro/Controls/Helper/GroupBoxHelper.cs b/src/MahApps.Metro/Controls/Helper/GroupBoxHelper.cs
deleted file mode 100644
index d2910bbf62..0000000000
--- a/src/MahApps.Metro/Controls/Helper/GroupBoxHelper.cs
+++ /dev/null
@@ -1,27 +0,0 @@
-using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Media;
-
-namespace MahApps.Metro.Controls
-{
-    using System.ComponentModel;
-
-    public static class GroupBoxHelper
-    {
-        public static readonly DependencyProperty HeaderForegroundProperty =
-            DependencyProperty.RegisterAttached("HeaderForeground", typeof(Brush), typeof(GroupBoxHelper), new UIPropertyMetadata(Brushes.White));
-
-        [Category(AppName.MahApps)]
-        [AttachedPropertyBrowsableForType(typeof(GroupBox))]
-        [AttachedPropertyBrowsableForType(typeof(Expander))]
-        public static Brush GetHeaderForeground(UIElement element)
-        {
-            return (Brush)element.GetValue(HeaderForegroundProperty);
-        }
-
-        public static void SetHeaderForeground(UIElement element, Brush value)
-        {
-            element.SetValue(HeaderForegroundProperty, value);
-        }
-    }
-}
diff --git a/src/MahApps.Metro/Controls/Helper/HeaderedControlHelper.cs b/src/MahApps.Metro/Controls/Helper/HeaderedControlHelper.cs
new file mode 100644
index 0000000000..40acdba8cd
--- /dev/null
+++ b/src/MahApps.Metro/Controls/Helper/HeaderedControlHelper.cs
@@ -0,0 +1,44 @@
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
+
+namespace MahApps.Metro.Controls
+{
+    using System.ComponentModel;
+
+    public static class HeaderedControlHelper
+    {
+        public static readonly DependencyProperty HeaderForegroundProperty =
+            DependencyProperty.RegisterAttached("HeaderForeground", typeof(Brush), typeof(HeaderedControlHelper), new UIPropertyMetadata(Brushes.White));
+
+        [Category(AppName.MahApps)]
+        [AttachedPropertyBrowsableForType(typeof(GroupBox))]
+        [AttachedPropertyBrowsableForType(typeof(Expander))]
+        public static Brush GetHeaderForeground(UIElement element)
+        {
+            return (Brush)element.GetValue(HeaderForegroundProperty);
+        }
+
+        public static void SetHeaderForeground(UIElement element, Brush value)
+        {
+            element.SetValue(HeaderForegroundProperty, value);
+        }
+
+
+        public static readonly DependencyProperty HeaderBackgroundProperty =
+            DependencyProperty.RegisterAttached("HeaderBackground", typeof(Brush), typeof(HeaderedControlHelper), new UIPropertyMetadata(null));
+
+        [Category(AppName.MahApps)]
+        [AttachedPropertyBrowsableForType(typeof(GroupBox))]
+        [AttachedPropertyBrowsableForType(typeof(Expander))]
+        public static Brush GetHeaderBackground(UIElement element)
+        {
+            return (Brush)element.GetValue(HeaderBackgroundProperty);
+        }
+
+        public static void SetHeaderBackground(UIElement element, Brush value)
+        {
+            element.SetValue(HeaderBackgroundProperty, value);
+        }
+    }
+}
diff --git a/src/MahApps.Metro/Styles/Clean/CleanGroupBox.xaml b/src/MahApps.Metro/Styles/Clean/CleanGroupBox.xaml
index e39364d35d..c3cf0d24ef 100644
--- a/src/MahApps.Metro/Styles/Clean/CleanGroupBox.xaml
+++ b/src/MahApps.Metro/Styles/Clean/CleanGroupBox.xaml
@@ -6,7 +6,8 @@
         <Setter Property="BorderBrush" Value="{DynamicResource MahApps.Brushes.Gray7}" />
         <Setter Property="BorderThickness" Value="0.3" />
         <Setter Property="Controls:ControlsHelper.HeaderFontSize" Value="16" />
-        <Setter Property="Controls:GroupBoxHelper.HeaderForeground" Value="{DynamicResource MahApps.Brushes.Text}" />
+        <Setter Property="Controls:HeaderedControlHelper.HeaderForeground" Value="{DynamicResource MahApps.Brushes.Text}" />
+        <Setter Property="Controls:HeaderedControlHelper.HeaderBackground" Value="{x:Null}" />
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="GroupBox">
@@ -16,24 +17,28 @@
                             <RowDefinition Height="*" />
                         </Grid.RowDefinitions>
 
-                        <Controls:ContentControlEx Grid.Row="0"
-                                                   Margin="{TemplateBinding Padding}"
-                                                   Content="{TemplateBinding Header}"
-                                                   ContentCharacterCasing="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.ContentCharacterCasing)}"
-                                                   ContentStringFormat="{TemplateBinding HeaderStringFormat}"
-                                                   ContentTemplate="{TemplateBinding HeaderTemplate}"
-                                                   ContentTemplateSelector="{TemplateBinding HeaderTemplateSelector}"
-                                                   FontFamily="{TemplateBinding Controls:ControlsHelper.HeaderFontFamily}"
-                                                   FontSize="{TemplateBinding Controls:ControlsHelper.HeaderFontSize}"
-                                                   FontStretch="{TemplateBinding Controls:ControlsHelper.HeaderFontStretch}"
-                                                   FontWeight="{TemplateBinding Controls:ControlsHelper.HeaderFontWeight}"
-                                                   Foreground="{TemplateBinding Controls:GroupBoxHelper.HeaderForeground}"
-                                                   RecognizesAccessKey="True"
-                                                   SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
+                        <Border Grid.Row="0"
+                                Background="{TemplateBinding Controls:HeaderedControlHelper.HeaderBackground}"
+                                BorderThickness="0">
+                            <Controls:ContentControlEx Content="{TemplateBinding Header}"
+                                                       Margin="{TemplateBinding Padding}"
+                                                       ContentCharacterCasing="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.ContentCharacterCasing)}"
+                                                       ContentStringFormat="{TemplateBinding HeaderStringFormat}"
+                                                       ContentTemplate="{TemplateBinding HeaderTemplate}"
+                                                       ContentTemplateSelector="{TemplateBinding HeaderTemplateSelector}"
+                                                       FontFamily="{TemplateBinding Controls:ControlsHelper.HeaderFontFamily}"
+                                                       FontSize="{TemplateBinding Controls:ControlsHelper.HeaderFontSize}"
+                                                       FontStretch="{TemplateBinding Controls:ControlsHelper.HeaderFontStretch}"
+                                                       FontWeight="{TemplateBinding Controls:ControlsHelper.HeaderFontWeight}"
+                                                       Foreground="{TemplateBinding Controls:HeaderedControlHelper.HeaderForeground}"
+                                                       RecognizesAccessKey="True"
+                                                       SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
+                        </Border>
 
                         <Grid Grid.Row="1"
                               HorizontalAlignment="Stretch"
-                              VerticalAlignment="Stretch">
+                              VerticalAlignment="Stretch"
+                              Background="{TemplateBinding Background}">
                             <Grid.ColumnDefinitions>
                                 <ColumnDefinition Width="Auto" />
                                 <ColumnDefinition Width="*" />
@@ -53,8 +58,8 @@
                                     BorderThickness="{TemplateBinding BorderThickness}"
                                     Style="{StaticResource InternalBorderStyle}" />
 
-                            <ContentPresenter Grid.Column="1"
-                                              Content="{TemplateBinding Content}"
+                            <ContentPresenter Content="{TemplateBinding Content}"
+                                              Grid.Column="1"
                                               ContentTemplate="{TemplateBinding ContentTemplate}"
                                               Cursor="{TemplateBinding Cursor}" />
 
diff --git a/src/MahApps.Metro/Styles/Controls.Expander.xaml b/src/MahApps.Metro/Styles/Controls.Expander.xaml
index 6588ad3196..7b0c8c12ab 100644
--- a/src/MahApps.Metro/Styles/Controls.Expander.xaml
+++ b/src/MahApps.Metro/Styles/Controls.Expander.xaml
@@ -62,11 +62,11 @@
                                       Stroke="{TemplateBinding Foreground}"
                                       StrokeThickness="2" />
                             </Grid>
-                            <Controls:ContentControlEx Grid.Row="1"
-                                                       Margin="0 4 0 0"
+                            <Controls:ContentControlEx Content="{TemplateBinding Content}"
+                                                       Grid.Row="1"
+                                                       Margin="0,4,0,0"
                                                        HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                                                        VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
-                                                       Content="{TemplateBinding Content}"
                                                        ContentCharacterCasing="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.ContentCharacterCasing)}"
                                                        ContentStringFormat="{TemplateBinding ContentStringFormat}"
                                                        ContentTemplate="{TemplateBinding ContentTemplate}"
@@ -136,11 +136,11 @@
                                       Stroke="{TemplateBinding Foreground}"
                                       StrokeThickness="2" />
                             </Grid>
-                            <Controls:ContentControlEx Grid.Column="1"
-                                                       Margin="4 0 0 0"
+                            <Controls:ContentControlEx Content="{TemplateBinding Content}"
+                                                       Grid.Column="1"
+                                                       Margin="4,0,0,0"
                                                        HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                                                        VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
-                                                       Content="{TemplateBinding Content}"
                                                        ContentCharacterCasing="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.ContentCharacterCasing)}"
                                                        ContentStringFormat="{TemplateBinding ContentStringFormat}"
                                                        ContentTemplate="{TemplateBinding ContentTemplate}"
@@ -209,11 +209,11 @@
                                       Stroke="{TemplateBinding Foreground}"
                                       StrokeThickness="2" />
                             </Grid>
-                            <Controls:ContentControlEx Grid.Row="1"
-                                                       Margin="0 4 0 0"
+                            <Controls:ContentControlEx Content="{TemplateBinding Content}"
+                                                       Grid.Row="1"
+                                                       Margin="0,4,0,0"
                                                        HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                                                        VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
-                                                       Content="{TemplateBinding Content}"
                                                        ContentCharacterCasing="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.ContentCharacterCasing)}"
                                                        ContentStringFormat="{TemplateBinding ContentStringFormat}"
                                                        ContentTemplate="{TemplateBinding ContentTemplate}"
@@ -272,11 +272,11 @@
                                       Stroke="{TemplateBinding Foreground}"
                                       StrokeThickness="2" />
                             </Grid>
-                            <Controls:ContentControlEx Grid.Column="1"
-                                                       Margin="4 0 0 0"
+                            <Controls:ContentControlEx Content="{TemplateBinding Content}"
+                                                       Grid.Column="1"
+                                                       Margin="4,0,0,0"
                                                        HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                                                        VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
-                                                       Content="{TemplateBinding Content}"
                                                        ContentCharacterCasing="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.ContentCharacterCasing)}"
                                                        ContentStringFormat="{TemplateBinding ContentStringFormat}"
                                                        ContentTemplate="{TemplateBinding ContentTemplate}"
@@ -325,7 +325,7 @@
     </Storyboard>
 
     <Style x:Key="MahApps.Styles.Expander" TargetType="{x:Type Expander}">
-        <Setter Property="Background" Value="{DynamicResource MahApps.Brushes.Accent}" />
+        <Setter Property="Background" Value="{x:Null}" />
         <Setter Property="BorderBrush" Value="{DynamicResource MahApps.Brushes.Accent}" />
         <Setter Property="BorderThickness" Value="1" />
         <Setter Property="Controls:ControlsHelper.ContentCharacterCasing" Value="Upper" />
@@ -334,7 +334,8 @@
         <Setter Property="Controls:ExpanderHelper.HeaderLeftStyle" Value="{StaticResource MahApps.Styles.ToggleButton.ExpanderHeader.Left}" />
         <Setter Property="Controls:ExpanderHelper.HeaderRightStyle" Value="{StaticResource MahApps.Styles.ToggleButton.ExpanderHeader.Right}" />
         <Setter Property="Controls:ExpanderHelper.HeaderUpStyle" Value="{StaticResource MahApps.Styles.ToggleButton.ExpanderHeader.Up}" />
-        <Setter Property="Controls:GroupBoxHelper.HeaderForeground" Value="{x:Null}" />
+        <Setter Property="Controls:HeaderedControlHelper.HeaderForeground" Value="{x:Null}" />
+        <Setter Property="Controls:HeaderedControlHelper.HeaderBackground" Value="{DynamicResource MahApps.Brushes.Accent}" />
         <Setter Property="Foreground" Value="{DynamicResource MahApps.Brushes.Black}" />
         <Setter Property="Padding" Value="4" />
         <Setter Property="SnapsToDevicePixels" Value="True" />
@@ -348,7 +349,7 @@
                                    Opacity="0" />
                         <DockPanel x:Name="ExpanderRoot">
                             <Border x:Name="HeaderSite"
-                                    Background="{TemplateBinding Background}"
+                                    Background="{TemplateBinding Controls:HeaderedControlHelper.HeaderBackground}"
                                     BorderBrush="{TemplateBinding BorderBrush}"
                                     BorderThickness="{TemplateBinding BorderThickness}"
                                     CornerRadius="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.CornerRadius), Converter={StaticResource CornerRadiusBindingConverter}, ConverterParameter={x:Static Converters:RadiusType.Bottom}}"
@@ -356,8 +357,8 @@
                                     SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                                     UseLayoutRounding="True">
                                 <ToggleButton x:Name="ToggleSite"
-                                              Controls:ControlsHelper.ContentCharacterCasing="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.ContentCharacterCasing)}"
                                               Content="{TemplateBinding Header}"
+                                              Controls:ControlsHelper.ContentCharacterCasing="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.ContentCharacterCasing)}"
                                               ContentStringFormat="{TemplateBinding HeaderStringFormat}"
                                               ContentTemplate="{TemplateBinding HeaderTemplate}"
                                               ContentTemplateSelector="{TemplateBinding HeaderTemplateSelector}"
@@ -374,7 +375,7 @@
                                                      Path="Background"
                                                      RelativeSource="{RelativeSource TemplatedParent}" />
                                             <Binding Mode="OneWay"
-                                                     Path="(Controls:GroupBoxHelper.HeaderForeground)"
+                                                     Path="(Controls:HeaderedControlHelper.HeaderForeground)"
                                                      RelativeSource="{RelativeSource TemplatedParent}" />
                                         </MultiBinding>
                                     </ToggleButton.Foreground>
@@ -383,7 +384,7 @@
                             <Border x:Name="ExpandSite"
                                     HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                     VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
-                                    Background="Transparent"
+                                    Background="{TemplateBinding Background}"
                                     BorderBrush="{TemplateBinding BorderBrush}"
                                     BorderThickness="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=BorderThickness, Converter={StaticResource ThicknessBindingConverter}, ConverterParameter={x:Static Converters:ThicknessSideType.Top}}"
                                     CornerRadius="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.CornerRadius), Converter={StaticResource CornerRadiusBindingConverter}, ConverterParameter={x:Static Converters:RadiusType.Top}}"
@@ -393,8 +394,8 @@
                                     SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                                     UseLayoutRounding="True"
                                     Visibility="Collapsed">
-                                <ContentPresenter Margin="{TemplateBinding Padding}"
-                                                  Content="{TemplateBinding Content}"
+                                <ContentPresenter Content="{TemplateBinding Content}"
+                                                  Margin="{TemplateBinding Padding}"
                                                   ContentTemplate="{TemplateBinding ContentTemplate}"
                                                   Cursor="{TemplateBinding Cursor}"
                                                   UseLayoutRounding="False" />
diff --git a/src/MahApps.Metro/Styles/Controls.GroupBox.xaml b/src/MahApps.Metro/Styles/Controls.GroupBox.xaml
index a4d8a13c64..f1447eef15 100644
--- a/src/MahApps.Metro/Styles/Controls.GroupBox.xaml
+++ b/src/MahApps.Metro/Styles/Controls.GroupBox.xaml
@@ -9,12 +9,13 @@
     <Thickness x:Key="GroupBoxHeaderThemePadding">4</Thickness>
 
     <Style x:Key="MahApps.Styles.GroupBox" TargetType="{x:Type GroupBox}">
-        <Setter Property="Background" Value="{DynamicResource MahApps.Brushes.Accent}" />
+        <Setter Property="Background" Value="{x:Null}" />
         <Setter Property="BorderBrush" Value="{DynamicResource MahApps.Brushes.Accent}" />
         <Setter Property="BorderThickness" Value="1" />
         <Setter Property="Controls:ControlsHelper.ContentCharacterCasing" Value="Upper" />
         <Setter Property="Controls:ControlsHelper.HeaderFontSize" Value="{DynamicResource MahApps.Sizes.Font.Content}" />
-        <Setter Property="Controls:GroupBoxHelper.HeaderForeground" Value="{x:Null}" />
+        <Setter Property="Controls:HeaderedControlHelper.HeaderForeground" Value="{x:Null}" />
+        <Setter Property="Controls:HeaderedControlHelper.HeaderBackground" Value="{DynamicResource MahApps.Brushes.Accent}" />
         <Setter Property="Foreground" Value="{DynamicResource MahApps.Brushes.Black}" />
         <Setter Property="Padding" Value="4" />
         <Setter Property="SnapsToDevicePixels" Value="True" />
@@ -28,15 +29,15 @@
                         </Grid.RowDefinitions>
                         <Border x:Name="HeaderSite"
                                 Grid.Row="0"
-                                Background="{TemplateBinding Background}"
+                                Background="{TemplateBinding Controls:HeaderedControlHelper.HeaderBackground}"
                                 BorderBrush="{TemplateBinding BorderBrush}"
                                 BorderThickness="{TemplateBinding BorderThickness}"
                                 CornerRadius="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.CornerRadius), Converter={StaticResource CornerRadiusBindingConverter}, ConverterParameter={x:Static Converters:RadiusType.Bottom}}"
                                 SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                                 UseLayoutRounding="True">
                             <Controls:ContentControlEx x:Name="HeaderContent"
-                                                       Margin="{DynamicResource GroupBoxHeaderThemePadding}"
                                                        Content="{TemplateBinding Header}"
+                                                       Margin="{DynamicResource GroupBoxHeaderThemePadding}"
                                                        ContentCharacterCasing="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.ContentCharacterCasing)}"
                                                        ContentStringFormat="{TemplateBinding HeaderStringFormat}"
                                                        ContentTemplate="{TemplateBinding HeaderTemplate}"
@@ -51,24 +52,24 @@
                                 <TextElement.Foreground>
                                     <MultiBinding Converter="{x:Static Converters:BackgroundToForegroundConverter.Instance}">
                                         <Binding Mode="OneWay"
-                                                 Path="Background"
+                                                 Path="(Controls:HeaderedControlHelper.HeaderBackground)"
                                                  RelativeSource="{RelativeSource TemplatedParent}" />
                                         <Binding Mode="OneWay"
-                                                 Path="(Controls:GroupBoxHelper.HeaderForeground)"
+                                                 Path="(Controls:HeaderedControlHelper.HeaderForeground)"
                                                  RelativeSource="{RelativeSource TemplatedParent}" />
                                     </MultiBinding>
                                 </TextElement.Foreground>
                             </Controls:ContentControlEx>
                         </Border>
                         <Border Grid.Row="1"
-                                Background="Transparent"
+                                Background="{TemplateBinding Background}"
                                 BorderBrush="{TemplateBinding BorderBrush}"
                                 BorderThickness="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=BorderThickness, Converter={StaticResource ThicknessBindingConverter}, ConverterParameter={x:Static Converters:ThicknessSideType.Top}}"
                                 CornerRadius="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.CornerRadius), Converter={StaticResource CornerRadiusBindingConverter}, ConverterParameter={x:Static Converters:RadiusType.Top}}"
                                 SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                                 UseLayoutRounding="True">
-                            <ContentPresenter Margin="{TemplateBinding Padding}"
-                                              Content="{TemplateBinding Content}"
+                            <ContentPresenter Content="{TemplateBinding Content}"
+                                              Margin="{TemplateBinding Padding}"
                                               ContentTemplate="{TemplateBinding ContentTemplate}"
                                               Cursor="{TemplateBinding Cursor}"
                                               UseLayoutRounding="False" />
diff --git a/src/MahApps.Metro/Styles/VS/Expander.xaml b/src/MahApps.Metro/Styles/VS/Expander.xaml
index 1dfddd223b..bf0696d724 100644
--- a/src/MahApps.Metro/Styles/VS/Expander.xaml
+++ b/src/MahApps.Metro/Styles/VS/Expander.xaml
@@ -333,7 +333,8 @@
         <Setter Property="Controls:ExpanderHelper.HeaderLeftStyle" Value="{StaticResource MahApps.Styles.ToggleButton.ExpanderHeader.Left.VisualStudio}" />
         <Setter Property="Controls:ExpanderHelper.HeaderRightStyle" Value="{StaticResource MahApps.Styles.ToggleButton.ExpanderHeader.Right.VisualStudio}" />
         <Setter Property="Controls:ExpanderHelper.HeaderUpStyle" Value="{StaticResource MahApps.Styles.ToggleButton.ExpanderHeader.Up.VisualStudio}" />
-        <Setter Property="Controls:GroupBoxHelper.HeaderForeground" Value="{DynamicResource MahApps.Brushes.Foreground}" />
+        <Setter Property="Controls:HeaderedControlHelper.HeaderForeground" Value="{DynamicResource MahApps.Brushes.Foreground}" />
+        <Setter Property="Controls:HeaderedControlHelper.HeaderBackground" Value="{x:Null}" />
         <Setter Property="Foreground" Value="{DynamicResource MahApps.Brushes.Foreground}" />
         <Setter Property="SnapsToDevicePixels" Value="True" />
         <Setter Property="Template">
@@ -357,14 +358,15 @@
                                           FontSize="{TemplateBinding Controls:ControlsHelper.HeaderFontSize}"
                                           FontStretch="{TemplateBinding Controls:ControlsHelper.HeaderFontStretch}"
                                           FontWeight="{TemplateBinding Controls:ControlsHelper.HeaderFontWeight}"
-                                          Foreground="{TemplateBinding Controls:GroupBoxHelper.HeaderForeground}"
+                                          Foreground="{TemplateBinding Controls:HeaderedControlHelper.HeaderForeground}"
+                                          Background="{TemplateBinding Controls:HeaderedControlHelper.HeaderBackground}"
                                           IsChecked="{Binding IsExpanded, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}"
                                           SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                                           Style="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ExpanderHelper.HeaderDownStyle)}" />
                             <Border x:Name="ExpandSite"
                                     HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                     VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
-                                    Background="Transparent"
+                                    Background="{TemplateBinding Background}"
                                     BorderBrush="{TemplateBinding BorderBrush}"
                                     BorderThickness="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=BorderThickness, Converter={StaticResource ThicknessBindingConverter}, ConverterParameter={x:Static Converters:ThicknessSideType.Top}}"
                                     DockPanel.Dock="Bottom"
diff --git a/src/MahApps.Metro/Styles/VS/GroupBox.xaml b/src/MahApps.Metro/Styles/VS/GroupBox.xaml
index d12d674c2c..a15e896070 100644
--- a/src/MahApps.Metro/Styles/VS/GroupBox.xaml
+++ b/src/MahApps.Metro/Styles/VS/GroupBox.xaml
@@ -12,7 +12,8 @@
         <Setter Property="BorderThickness" Value="2" />
         <Setter Property="Controls:ControlsHelper.ContentCharacterCasing" Value="Normal" />
         <Setter Property="Controls:ControlsHelper.HeaderFontSize" Value="{DynamicResource MahApps.Sizes.GroupBox.HeaderThemeFont}" />
-        <Setter Property="Controls:GroupBoxHelper.HeaderForeground" Value="{DynamicResource MahApps.Brushes.Foreground}" />
+        <Setter Property="Controls:HeaderedControlHelper.HeaderForeground" Value="{DynamicResource MahApps.Brushes.Foreground}" />
+        <Setter Property="Controls:HeaderedControlHelper.HeaderBackground" Value="{x:Null}" />
         <Setter Property="Foreground" Value="{DynamicResource MahApps.Brushes.Foreground}" />
         <Setter Property="SnapsToDevicePixels" Value="True" />
         <Setter Property="Template">
@@ -23,29 +24,32 @@
                             <RowDefinition Height="Auto" />
                             <RowDefinition Height="*" />
                         </Grid.RowDefinitions>
-                        <Controls:ContentControlEx x:Name="HeaderContent"
-                                                   Grid.Row="0"
-                                                   Margin="{DynamicResource GroupBoxHeaderThemePadding}"
-                                                   Content="{TemplateBinding Header}"
-                                                   ContentCharacterCasing="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.ContentCharacterCasing)}"
-                                                   ContentStringFormat="{TemplateBinding HeaderStringFormat}"
-                                                   ContentTemplate="{TemplateBinding HeaderTemplate}"
-                                                   ContentTemplateSelector="{TemplateBinding HeaderTemplateSelector}"
-                                                   FontFamily="{TemplateBinding Controls:ControlsHelper.HeaderFontFamily}"
-                                                   FontSize="{TemplateBinding Controls:ControlsHelper.HeaderFontSize}"
-                                                   FontStretch="{TemplateBinding Controls:ControlsHelper.HeaderFontStretch}"
-                                                   FontWeight="{TemplateBinding Controls:ControlsHelper.HeaderFontWeight}"
-                                                   Foreground="{TemplateBinding Controls:GroupBoxHelper.HeaderForeground}"
-                                                   RecognizesAccessKey="True"
-                                                   SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
+                        <Border Grid.Row="0"
+                                Background="{TemplateBinding Controls:HeaderedControlHelper.HeaderBackground}"
+                                BorderThickness="0">
+                            <Controls:ContentControlEx x:Name="HeaderContent"
+                                                       Content="{TemplateBinding Header}"
+                                                       Margin="{DynamicResource GroupBoxHeaderThemePadding}"
+                                                       ContentCharacterCasing="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Controls:ControlsHelper.ContentCharacterCasing)}"
+                                                       ContentStringFormat="{TemplateBinding HeaderStringFormat}"
+                                                       ContentTemplate="{TemplateBinding HeaderTemplate}"
+                                                       ContentTemplateSelector="{TemplateBinding HeaderTemplateSelector}"
+                                                       FontFamily="{TemplateBinding Controls:ControlsHelper.HeaderFontFamily}"
+                                                       FontSize="{TemplateBinding Controls:ControlsHelper.HeaderFontSize}"
+                                                       FontStretch="{TemplateBinding Controls:ControlsHelper.HeaderFontStretch}"
+                                                       FontWeight="{TemplateBinding Controls:ControlsHelper.HeaderFontWeight}"
+                                                       Foreground="{TemplateBinding Controls:HeaderedControlHelper.HeaderForeground}"
+                                                       RecognizesAccessKey="True"
+                                                       SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
+                        </Border>
                         <Border Grid.Row="1"
-                                Background="Transparent"
+                                Background="{TemplateBinding Background}"
                                 BorderBrush="{TemplateBinding BorderBrush}"
                                 BorderThickness="{TemplateBinding BorderThickness}"
                                 SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                                 UseLayoutRounding="True">
-                            <ContentPresenter Margin="{TemplateBinding Padding}"
-                                              Content="{TemplateBinding Content}"
+                            <ContentPresenter Content="{TemplateBinding Content}"
+                                              Margin="{TemplateBinding Padding}"
                                               ContentTemplate="{TemplateBinding ContentTemplate}"
                                               Cursor="{TemplateBinding Cursor}"
                                               UseLayoutRounding="False" />
diff --git a/src/MahApps.Metro/Themes/MetroHeader.xaml b/src/MahApps.Metro/Themes/MetroHeader.xaml
index 49267d46ca..52cd263c9d 100644
--- a/src/MahApps.Metro/Themes/MetroHeader.xaml
+++ b/src/MahApps.Metro/Themes/MetroHeader.xaml
@@ -5,22 +5,23 @@
     <Style x:Key="MahApps.Styles.MetroHeader" TargetType="{x:Type Controls:MetroHeader}">
         <Setter Property="Controls:ControlsHelper.HeaderFontSize" Value="{DynamicResource MahApps.Sizes.Font.Normal}" />
         <Setter Property="Controls:ControlsHelper.HeaderMargin" Value="0 0 0 2" />
-        <Setter Property="Controls:GroupBoxHelper.HeaderForeground" Value="{Binding RelativeSource={RelativeSource Self}, Path=Foreground, Mode=OneWay}" />
+        <Setter Property="Controls:HeaderedControlHelper.HeaderForeground" Value="{Binding RelativeSource={RelativeSource Self}, Path=Foreground, Mode=OneWay}" />
+        <Setter Property="Controls:HeaderedControlHelper.HeaderBackground" Value="{Binding RelativeSource={RelativeSource Self}, Path=Background, Mode=OneWay}" />
         <Setter Property="HorizontalContentAlignment" Value="Stretch" />
         <Setter Property="IsTabStop" Value="False" />
         <Setter Property="SnapsToDevicePixels" Value="True" />
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="{x:Type Controls:MetroHeader}">
-                    <Grid Background="Transparent" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}">
+                    <Grid Background="{TemplateBinding Controls:HeaderedControlHelper.HeaderBackground}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}">
                         <Grid.RowDefinitions>
                             <RowDefinition Height="Auto" />
                             <RowDefinition Height="*" />
                         </Grid.RowDefinitions>
                         <Controls:ContentControlEx x:Name="PART_Header"
+                                                   Content="{TemplateBinding Header}"
                                                    Grid.Row="0"
                                                    Margin="{TemplateBinding Controls:ControlsHelper.HeaderMargin}"
-                                                   Content="{TemplateBinding Header}"
                                                    ContentCharacterCasing="{TemplateBinding Controls:ControlsHelper.ContentCharacterCasing}"
                                                    ContentStringFormat="{TemplateBinding HeaderStringFormat}"
                                                    ContentTemplate="{TemplateBinding HeaderTemplate}"
@@ -29,7 +30,7 @@
                                                    FontSize="{TemplateBinding Controls:ControlsHelper.HeaderFontSize}"
                                                    FontStretch="{TemplateBinding Controls:ControlsHelper.HeaderFontStretch}"
                                                    FontWeight="{TemplateBinding Controls:ControlsHelper.HeaderFontWeight}"
-                                                   Foreground="{TemplateBinding Controls:GroupBoxHelper.HeaderForeground}"
+                                                   Foreground="{TemplateBinding Controls:HeaderedControlHelper.HeaderForeground}"
                                                    IsTabStop="False"
                                                    RecognizesAccessKey="True"
                                                    SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />