如何更改选项卡控件选项卡项的页眉颜色[MahApps.Metro]

<Window x:Class="YourNamespace.YourWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:Controls="http://metro.mahapps.com/winfx/xaml/controls"
        xmlns:MahApps="http://metro.mahapps.com/winfx/xaml/controls"
        Title="Your Window" Height="450" Width="800">

    <Window.Resources>
        <Style TargetType="Controls:TabItem">
            <Setter Property="HeaderTemplate">
                <Setter.Value>
                    <DataTemplate>
                        <TextBlock Text="{Binding}" Foreground="Red" />
                    </DataTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Window.Resources>

    <Grid>
        <Controls:TabControl>
            <Controls:TabItem Header="Tab 1">
                <!-- Tab 1 content -->
            </Controls:TabItem>
            <Controls:TabItem Header="Tab 2">
                <!-- Tab 2 content -->
            </Controls:TabItem>
        </Controls:TabControl>
    </Grid>
</Window>