如何在WPF中设置滑块控件的样式？

<Slider x:Name="mySlider" Minimum="0" Maximum="100" Value="50" />

   <Setter Property="Template">
       <Setter.Value>
           <ControlTemplate TargetType="{x:Type Slider}">
                <Grid>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto" />
                        <RowDefinition Height="Auto" />
                    </Grid.RowDefinitions>
                   <Track x:Name="PART_Track" Grid.Row="0" Margin="0,0,0,0">
                       <Track.Thumb>
                            <Thumb x:Name="Thumb" Style="{StaticResource SliderThumbStyle}" />
                        </Track.Thumb>
                    </Track>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

   <Setter Property="OverridesDefaultStyle" Value="True" />
   <Setter Property="Template">
       <Setter.Value>
           <ControlTemplate TargetType="{x:Type Thumb}">
                <Ellipse Width="20" Height="20" Fill="Red" />
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

<Slider x:Name="mySlider" Minimum="0" Maximum="100" Value="50" Style="{StaticResource SliderStyle}" />