MahAppsの適用について

App.xaml

<Application x:Class="LivetWPFApplication3.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             StartupUri="Views\MainWindow.xaml"
             Startup="Application_Startup">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <!-- MahApps.Metro resource dictionaries. Make sure that all file names are Case Sensitive! -->
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colors.xaml" />
                <!-- Accent and AppTheme setting -->
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Blue.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseLight.xaml" />
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</Application>

MainWindow.xaml

<metro:MetroWindow x:Class="LivetWPFApplication3.Views.MainWindow"
    xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
    xmlns:metro="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
    xmlns:metrobe="clr-namespace:MahApps.Metro.Behaviours;assembly=MahApps.Metro">
    
    <i:Interaction.Behaviors>
        <!-- これをしないと外側のウィンドウが表示されてしまう。 -->
        <metrobe:BorderlessWindowBehavior/>
    </i:Interaction.Behaviors>
</metro:MetroWindow>

MainWindow.xaml.cs

public partial class MainWindow : MahApps.Metro.Controls.MetroWindow
{
    public MainWindow()
    {
        InitializeComponent();
    }
}