<ControlTemplate x:Key="HorizontalScrollBar"
        TargetType="{x:Type ScrollBar}">
        <Grid >
            <Grid.ColumnDefinitions>
                <ColumnDefinition MaxWidth="18"/>
                <ColumnDefinition Width="0.00001*"/>
                <ColumnDefinition MaxWidth="18"/>
            </Grid.ColumnDefinitions>
            <Border
                Grid.ColumnSpan="3"
                CornerRadius="2"
                Background="Transparent"   />
            <RepeatButton
                Grid.Column="0"
                Style="{StaticResource ScrollBarLineButton}"
                Width="18"
                Command="ScrollBar.LineLeftCommand"
                Content="M 4 0 L 4 8 L 0 4 Z" />
            <Track
                Name="PART_Track"
                Grid.Column="1"
                IsDirectionReversed="False">
                <Track.DecreaseRepeatButton>
                    <RepeatButton
                        Style="{StaticResource ScrollBarPageButton}"
                        Command="ScrollBar.PageLeftCommand" />
                </Track.DecreaseRepeatButton>
                <Track.Thumb>
                    <Thumb
                        Style="{StaticResource ScrollBarThumb}"
                        Margin="0,1,0,1"
                        Background="{DynamicResource NormalBrush}"
                        BorderBrush="{DynamicResource NormalBorderBrush}" />
                </Track.Thumb>
                <Track.IncreaseRepeatButton>
                    <RepeatButton
                        Style="{StaticResource ScrollBarPageButton}"
                        Command="ScrollBar.PageRightCommand" />
                </Track.IncreaseRepeatButton>
            </Track>
            <RepeatButton
                Grid.Column="3"
                Style="{StaticResource ScrollBarLineButton}"
                Width="18"
                Command="ScrollBar.LineRightCommand"
                Content="M 0 0 L 4 4 L 0 8 Z"/>
        </Grid>
    </ControlTemplate>

<Style TargetType="{x:Type ScrollViewer}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ScrollViewer}">
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition/>
                        <ColumnDefinition Width="Auto"/>
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition/>
                        <RowDefinition Height="Auto"/>
                    </Grid.RowDefinitions>
                    <ScrollContentPresenter Grid.Column="0" />
                    <ScrollBar x:Name="PART_VerticalScrollBar" Grid.Row="0" Grid.Column="1" Value="{TemplateBinding VerticalOffset}" Maximum="{TemplateBinding ScrollableHeight}" ViewportSize="{TemplateBinding ViewportHeight}" Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"/>
                    <ScrollBar x:Name="PART_HorizontalScrollBar" Orientation="Horizontal" Grid.Row="1" Grid.Column="0" Value="{TemplateBinding HorizontalOffset}" Maximum="{TemplateBinding ScrollableWidth}" ViewportSize="{TemplateBinding ViewportWidth}" Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"/>
                    <!--<Rectangle Grid.Row="1" Grid.Column="1" Fill="Red"/>-->
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>