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

    <LinearGradientBrush x:Key="HorizontalBrush" StartPoint="0,0" EndPoint="1,0">
        <GradientStop Color="LightGreen" Offset="0.2" />
        <GradientStop Color="Blue" Offset="0.5" />
        <GradientStop Color="Red" Offset="1.0" />
    </LinearGradientBrush>

    <Style x:Key="SliderButtonStyle" TargetType="{x:Type RepeatButton}">
        <Setter Property="SnapsToDevicePixels" Value="true"/>
        <Setter Property="OverridesDefaultStyle" Value="true"/>
        <Setter Property="IsTabStop" Value="false"/>
        <Setter Property="Focusable" Value="false"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type RepeatButton}">
                    <Border Background="Transparent" />
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <Style x:Key="DecreaseSliderButtonStyle" TargetType="{x:Type RepeatButton}">
        <Setter Property="SnapsToDevicePixels" Value="true"/>
        <Setter Property="OverridesDefaultStyle" Value="true"/>
        <Setter Property="IsTabStop" Value="false"/>
        <Setter Property="Focusable" Value="false"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type RepeatButton}">
                    <Border Height="18" Background="DimGray" CornerRadius="6" Margin="0,0,0,0" />
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>




    <Style x:Key="SliderThumbStyle" TargetType="Thumb">
        <Setter Property="SnapsToDevicePixels" Value="true"/>
        <Setter Property="OverridesDefaultStyle" Value="false"/>
        <Setter Property="Height" Value="18"/>
        <Setter Property="Width" Value="18"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Thumb">
                    <Ellipse  Stroke="Black"
                              StrokeThickness="1"
                              Name="Ellipse"
                              Fill="Orange"></Ellipse>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>


    <Style TargetType="Slider">
    <Setter Property="OverridesDefaultStyle" Value="true"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="Slider">
                <Grid>

                        <Border Name="PART_Border"
                            CornerRadius="5"
                            Width="{TemplateBinding Width}"
                            Height="18"
                            Background="{StaticResource HorizontalBrush}"
                            HorizontalAlignment="Stretch"
                            VerticalAlignment="Center" />

                        <Track Name="PART_Track"
                               HorizontalAlignment="Stretch"
                               VerticalAlignment="Center"
                               Width="{TemplateBinding Width}"
                               Height="{TemplateBinding Height}">
                        <Track.DecreaseRepeatButton>
                            <RepeatButton Command="Slider.DecreaseLarge"
                                          Style="{StaticResource SliderButtonStyle}" />
                        </Track.DecreaseRepeatButton>
                        <Track.Thumb>
                            <Thumb Style="{StaticResource SliderThumbStyle}" />
                        </Track.Thumb>
                            <Track.IncreaseRepeatButton>
                                <RepeatButton Command="Slider.IncreaseLarge"
                                           Style="{StaticResource DecreaseSliderButtonStyle}"/>
                        </Track.IncreaseRepeatButton>
                    </Track>
                </Grid>


            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

</ResourceDictionary>