Slider 控件设置了SelectionStart和SelectionEnd
<Slider Grid.Row="1" Height="25"
Value="50"
Minimum="0"
Maximum="100"
SelectionStart="30"
SelectionEnd="60"
TickFrequency="1"
IsSelectionRangeEnabled="True"
TickPlacement="BottomRight"
IsSnapToTickEnabled="False"
VerticalAlignment="Center"
Margin="2">
</Slider>
显示效果如图
如何设置他选中范围的样式呢,我想改成红色怎么改?