fix Label style

fix issues #43   thanks for your feedback @Hcx12345

Author: yanjinhuagood

src/WPFDevelopers.Net40/Themes/Theme.xaml

@@ -3809,8 +3809,8 @@
 		<Setter Property="Template">
 			<Setter.Value>
 				<ControlTemplate TargetType="{x:Type Label}">
-					<Border>
-						<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" RecognizesAccessKey="True" />
+					<Border Padding="{TemplateBinding Padding}" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" SnapsToDevicePixels="true">
+						<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
 					</Border>
 				</ControlTemplate>
 			</Setter.Value>

src/WPFDevelopers.Shared/Styles/Styles.Label.xaml

@@ -16,11 +16,17 @@
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="{x:Type Label}">
-                    <Border>
+                    <Border
+                        Padding="{TemplateBinding Padding}"
+                        Background="{TemplateBinding Background}"
+                        BorderBrush="{TemplateBinding BorderBrush}"
+                        BorderThickness="{TemplateBinding BorderThickness}"
+                        SnapsToDevicePixels="true">
                         <ContentPresenter
                             HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                             VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
-                            RecognizesAccessKey="True" />
+                            RecognizesAccessKey="True"
+                            SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
                     </Border>
                 </ControlTemplate>
             </Setter.Value>