wpf,怎么设计win8风格的按钮

wpf,如何设计win8风格的按钮
我说的是普通按钮,略带扁平化即可,如何设计??
如图:

------解决方案--------------------
重写button的style然后里面

<Style TargetType="{x:Type Button}">

                    <Setter Property="Template" >

                        <Setter.Value>

                            <ControlTemplate TargetType="{x:Type Button}">

                                <Border BorderBrush="Gray" BorderThickness="1" Margin="5" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">

                                    <ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center" />

                                </Border>

                            </ControlTemplate>

                        </Setter.Value>

                    </Setter>

                </Style>

------解决方案--------------------
参考下这个吧

<Style TargetType="Button">

            <Setter Property="Foreground" Value="Black"/>

            <!--修改模板属性-->

            <Setter Property="Template">

                <Setter.Value>

                    <!--控件模板-->

                    <ControlTemplate TargetType="Button">

                        <!--背景色-->

                        <Border x:Name="back" Opacity="0.8" CornerRadius="3">

                            <Border.BitmapEffect>

                                <OuterGlowBitmapEffect Opacity="0.7" GlowSize="0" GlowColor="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Button.Background).(SolidColorBrush.Color)}" />

                            </Border.BitmapEffect>

                            <Border.Background>

                                <LinearGradientBrush StartPoint="0,0" EndPoint="0,1.5">

                                    <GradientBrush.GradientStops>

                                        <GradientStopCollection>