如何在WPF选项卡控件中创建梯形选项卡

<Application x:Class="TrapezoidTabsApp.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             StartupUri="MainWindow.xaml">
    <Application.Resources>
        <Style x:Key="TrapezoidTabItemStyle" TargetType="{x:Type TabItem}">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type TabItem}">
                        <Grid>
                            <Border Name="Border" Background="LightGray" BorderBrush="Gray" BorderThickness="1" CornerRadius="0,0,10,10">
                                <Border.RenderTransform>
                                    <SkewTransform AngleX="-20" />
                                </Border.RenderTransform>
                                <ContentPresenter ContentSource="Header" HorizontalAlignment="Center" VerticalAlignment="Center" />
                            </Border>
                        </Grid>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsSelected" Value="True">
                                <Setter TargetName="Border" Property="Background" Value="LightBlue" />
                                <Setter TargetName="Border" Property="BorderBrush" Value="Blue" />
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Application.Resources>
</Application>

<Window x:Class="TrapezoidTabsApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <TabControl>
            <TabItem Header="Tab 1" Style="{StaticResource TrapezoidTabItemStyle}">
                <TextBlock Text="Content of Tab 1" />
            </TabItem>
            <TabItem Header="Tab 2" Style="{StaticResource TrapezoidTabItemStyle}">
                <TextBlock Text="Content of Tab 2" />
            </TabItem>
            <TabItem Header="Tab 3" Style="{StaticResource TrapezoidTabItemStyle}">
                <TextBlock Text="Content of Tab 3" />
            </TabItem>
        </TabControl>
    </Grid>
</Window>