Shell.xaml

<Controls:MetroWindow xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
    xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
    xmlns:ae="http://icsharpcode.net/sharpdevelop/avalonedit"
    xmlns:Behaviours="clr-namespace:MahApps.Metro.Behaviours;assembly=MahApps.Metro"
    xmlns:avalonDock="http://avalondock.codeplex.com"
    xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
    Title="CloDE - ClojureCLR Development Environment" 
    ShowIconOnTitleBar="True"
    ShowTitleBar="True"
    IgnoreTaskbarOnMaximize="True"
    >

    <i:Interaction.Behaviors>
        <Behaviours:BorderlessWindowBehavior AutoSizeToContent="False" ResizeWithGrip="True"/>
        <Behaviours:WindowsSettingBehaviour />
    </i:Interaction.Behaviors>

    <Controls:MetroWindow.WindowCommands>
        <Controls:WindowCommands>
            <Button Content="settings" />
        </Controls:WindowCommands>
    </Controls:MetroWindow.WindowCommands>

</Controls:MetroWindow>