Apple Style Scrollbar WPF

It's not very pretty and in all honesty I can't remember where it came from, there is something similar to what you're after in one of my project here, there is probably a lot in the style that's not required or is incorrect but may as well give it a shot.

 <!--Scrollbar Thumbs-->        <Style x:Key="ScrollThumbs" TargetType="{x:Type Thumb}">            <Setter Property="Template">                <Setter.Value>                    <ControlTemplate TargetType="{x:Type Thumb}">                        <Grid x:Name="Grid">                            <Rectangle HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Width="Auto" Height="Auto" Fill="Transparent" />                            <Border x:Name="Rectangle1" CornerRadius="10" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Width="Auto" Height="Auto"  Background="{TemplateBinding Background}" />                        </Grid>                        <ControlTemplate.Triggers>                            <Trigger Property="Tag" Value="Horizontal">                                <Setter TargetName="Rectangle1" Property="Width" Value="Auto" />                                <Setter TargetName="Rectangle1" Property="Height" Value="7" />                            </Trigger>                        </ControlTemplate.Triggers>                    </ControlTemplate>                </Setter.Value>            </Setter>        </Style>        <!--ScrollBars-->        <Style x:Key="{x:Type ScrollBar}" TargetType="{x:Type ScrollBar}">            <Setter Property="Stylus.IsFlicksEnabled" Value="false" />            <Setter Property="Foreground" Value="LightGray" />            <Setter Property="Background" Value="DarkGray" />            <Setter Property="Width" Value="10" />            <Setter Property="Template">                <Setter.Value>                    <ControlTemplate TargetType="{x:Type ScrollBar}">                        <Grid x:Name="GridRoot" Width="19" Background="{TemplateBinding Background}">                            <Grid.RowDefinitions>                                <RowDefinition Height="0.00001*" />                            </Grid.RowDefinitions>                            <Track x:Name="PART_Track" Grid.Row="0" IsDirectionReversed="true" Focusable="false">                                <Track.Thumb>                                    <Thumb x:Name="Thumb" Background="{TemplateBinding Foreground}" Style="{DynamicResource ScrollThumbs}" />                                </Track.Thumb>                                <Track.IncreaseRepeatButton>                                    <RepeatButton x:Name="PageUp" Command="ScrollBar.PageDownCommand" Opacity="0" Focusable="false" />                                </Track.IncreaseRepeatButton>                                <Track.DecreaseRepeatButton>                                    <RepeatButton x:Name="PageDown" Command="ScrollBar.PageUpCommand" Opacity="0" Focusable="false" />                                </Track.DecreaseRepeatButton>                            </Track>                        </Grid>                        <ControlTemplate.Triggers>                            <Trigger SourceName="Thumb" Property="IsMouseOver" Value="true">                                <Setter Value="{DynamicResource ButtonSelectBrush}" TargetName="Thumb" Property="Background" />                            </Trigger>                            <Trigger SourceName="Thumb" Property="IsDragging" Value="true">                                <Setter Value="{DynamicResource DarkBrush}" TargetName="Thumb" Property="Background" />                            </Trigger>                            <Trigger Property="IsEnabled" Value="false">                                <Setter TargetName="Thumb" Property="Visibility" Value="Collapsed" />                            </Trigger>                            <Trigger Property="Orientation" Value="Horizontal">                                <Setter TargetName="GridRoot" Property="LayoutTransform">                                    <Setter.Value>                                        <RotateTransform Angle="-90" />                                    </Setter.Value>                                </Setter>                                <Setter TargetName="PART_Track" Property="LayoutTransform">                                    <Setter.Value>                                        <RotateTransform Angle="-90" />                                    </Setter.Value>                                </Setter>                                <Setter Property="Width" Value="Auto" />                                <Setter Property="Height" Value="12" />                                <Setter TargetName="Thumb" Property="Tag" Value="Horizontal" />                                <Setter TargetName="PageDown" Property="Command" Value="ScrollBar.PageLeftCommand" />                                <Setter TargetName="PageUp" Property="Command" Value="ScrollBar.PageRightCommand" />                            </Trigger>                        </ControlTemplate.Triggers>                    </ControlTemplate>                </Setter.Value>            </Setter>        </Style>