WPF Material Design Toggle Button

Another short post today, here I modified the code for my Apple Style Toggle Button so that it more resembled the MaterialDesign toggle button. I thought of this whilst playing with the YouTube autoplay button. Here is my code:

<Style TargetType="{x:Type ToggleButton}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ToggleButton}">
                <Viewbox>
                    <Border x:Name="Border" CornerRadius="10"
                            Background="#FFE2E2E2"
                            Width="40" Height="20">
                        <Border.Effect>
                            <DropShadowEffect ShadowDepth="0.5" Direction="0" Opacity="0.3" />
                        </Border.Effect>
                        <Ellipse x:Name="Ellipse" Fill="#FF909090" Stretch="Uniform"
                                 Margin="-8 -4"
                                 Stroke="Gray" StrokeThickness="0.2"
                                 HorizontalAlignment="Stretch">
                            <Ellipse.Effect>
                                <DropShadowEffect BlurRadius="10" ShadowDepth="1" 
                                                  Opacity="0.3" Direction="260" />
                            </Ellipse.Effect>
                        </Ellipse>
                    </Border>
                </Viewbox>
                <ControlTemplate.Triggers>
                    <EventTrigger RoutedEvent="Checked">
                        <BeginStoryboard>
                            <Storyboard>
                                <ColorAnimation Storyboard.TargetName="Ellipse"
                                                    Storyboard.TargetProperty="(Ellipse.Fill).(SolidColorBrush.Color)"
                                                    To="#FF0069F3"
                                                    Duration="0:0:0.05"
                                                    AccelerationRatio="0.7"
                                                    DecelerationRatio="0.3"/>
                                <ThicknessAnimation Storyboard.TargetName="Ellipse"
                                                    Storyboard.TargetProperty="Margin"
                                                    To="20 -4 -8 -4"
                                                    Duration="0:0:0.15" 
                                                    AccelerationRatio="0.7"
                                                    DecelerationRatio="0.3"/>
                            </Storyboard>
                        </BeginStoryboard>
                    </EventTrigger>
                    <EventTrigger RoutedEvent="Unchecked">
                        <BeginStoryboard>
                            <Storyboard>
                                <ColorAnimation Storyboard.TargetName="Ellipse"
                                                    Storyboard.TargetProperty="(Ellipse.Fill).(SolidColorBrush.Color)"
                                                    To="#FF909090"
                                                    Duration="0:0:0.05" 
                                                    AccelerationRatio="0.7"
                                                    DecelerationRatio="0.3"/>
                                <ThicknessAnimation Storyboard.TargetName="Ellipse"
                                                    Storyboard.TargetProperty="Margin"
                                                    To="-8 -4"
                                                    Duration="0:0:0.15"
                                                    AccelerationRatio="0.7"
                                                    DecelerationRatio="0.3"/>
                            </Storyboard>
                        </BeginStoryboard>
                    </EventTrigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

And finally, here is a little GIF of the toggle button:

Enjoy!