<Style x:Key="SliderCheckBox" TargetType="{x:Type CheckBox}">

            <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>

            <Setter Property="BorderThickness" Value=""/>

            <Setter Property="Cursor" Value="Hand" />

            <Setter Property="Template">

                <Setter.Value>

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

                        <ControlTemplate.Resources>

                            <Storyboard x:Key="StoryboardIsChecked">

                                <ColorAnimation Storyboard.TargetProperty="(Ellipse.Fill).(SolidColorBrush.Color)" Storyboard.TargetName="CheckFlag" To="#FF60B771" Duration="00:00:0.2"/>

                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="CheckFlag" Storyboard.TargetProperty="HorizontalAlignment">

                                    <DiscreteObjectKeyFrame KeyTime="0:0:0">

                                        <DiscreteObjectKeyFrame.Value>

                                            <HorizontalAlignment>Right</HorizontalAlignment>

                                        </DiscreteObjectKeyFrame.Value>

                                    </DiscreteObjectKeyFrame>

                                </ObjectAnimationUsingKeyFrames>

                            </Storyboard>

                            <Storyboard x:Key="StoryboardIsCheckedOff">

                                <ColorAnimation Storyboard.TargetProperty="(Ellipse.Fill).(SolidColorBrush.Color)" Storyboard.TargetName="CheckFlag" To="#FFC7CAC7" Duration="00:00:0.2"/>

                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="CheckFlag" Storyboard.TargetProperty="HorizontalAlignment">

                                    <DiscreteObjectKeyFrame KeyTime="0:0:0">

                                        <DiscreteObjectKeyFrame.Value>

                                            <HorizontalAlignment>Left</HorizontalAlignment>

                                        </DiscreteObjectKeyFrame.Value>

                                    </DiscreteObjectKeyFrame>

                                </ObjectAnimationUsingKeyFrames>

                            </Storyboard>

                        </ControlTemplate.Resources>

                        <BulletDecorator Background="Transparent" SnapsToDevicePixels="true" HorizontalAlignment="Stretch">

                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center">

                                <Grid>

                                    <Border x:Name="ForegroundPanel" Background="#FF839594" BorderThickness="" Width="" Height="" CornerRadius="" BorderBrush="#DDDDDD" VerticalAlignment="Center"/>

                                    <Ellipse Fill="#FFC7CAC7" x:Name="CheckFlag"  VerticalAlignment="Center" Width="" Height="">

                                        <Ellipse.RenderTransform>

                                            <TransformGroup>

                                                <ScaleTransform/>

                                                <SkewTransform/>

                                                <RotateTransform/>

                                                <TranslateTransform/>

                                            </TransformGroup>

                                        </Ellipse.RenderTransform>

                                    </Ellipse>

                                </Grid>

                                <ContentPresenter HorizontalAlignment="Left" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="Center"/>

                            </StackPanel>

                        </BulletDecorator>

                        <ControlTemplate.Triggers>

                            <Trigger Property="HasContent" Value="True">

                                <Setter Property="Padding" Value=""/>

                            </Trigger>

                            <Trigger Property="IsEnabled" Value="False">

                                <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>

                            </Trigger>

                            <Trigger Property="IsChecked" Value="True">

                                <Trigger.EnterActions>

                                    <BeginStoryboard x:Name="BeginStoryboardCheckedTrue" Storyboard="{StaticResource StoryboardIsChecked}" />

                                    <RemoveStoryboard BeginStoryboardName="BeginStoryboardCheckedFalse" />

                                </Trigger.EnterActions>

                            </Trigger>

                            <Trigger Property="IsChecked" Value="False">

                                <Trigger.EnterActions>

                                    <BeginStoryboard x:Name="BeginStoryboardCheckedFalse" Storyboard="{StaticResource StoryboardIsCheckedOff}" />

                                    <RemoveStoryboard BeginStoryboardName="BeginStoryboardCheckedTrue" />

                                </Trigger.EnterActions>

                            </Trigger>

                        </ControlTemplate.Triggers>

                    </ControlTemplate>

                </Setter.Value>

            </Setter>

        </Style>