如何制作这样的UWP滑块样式？

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Style TargetType="Slider">
        <Setter Property="Background" Value="LightGray"/>
        <Setter Property="BorderBrush" Value="Gray"/>
        <Setter Property="BorderThickness" Value="1"/>
        <Setter Property="Height" Value="20"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Slider">
                    <Grid>
                        <Rectangle x:Name="TrackRect" Height="4" Fill="DodgerBlue" VerticalAlignment="Center"/>
                        <Thumb x:Name="Thumb" Width="20" Height="20" Background="DodgerBlue" VerticalAlignment="Center"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

</ResourceDictionary>

<Application.Resources>
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="Styles/SliderStyles.xaml"/>
        </ResourceDictionary.MergedDictionaries>
    </ResourceDictionary>
</Application.Resources>