<Window x:Class="MenuBar.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:MenuBar"
        mc:Ignorable="d"
        Title="MenuBar" Height="350" Width="525" Loaded="Window_Loaded"  FontSize="20">
    <DockPanel LastChildFill="True">
        <Menu Name="mainMenu" DockPanel.Dock="Top" Height="auto"  FontSize="20" Margin="0 0 0 5">
            <MenuItem Header="_Datei" Name="mainFile" >
                <MenuItem Header="_Öffnen" Name="mnOpen" Click="mnOpen_Click"   />
                <Separator/>
                <MenuItem Header="_Schließen" Name="mnClose" Click="mnClose_Click">
            </MenuItem>
            <MenuItem Header="_Farben" Name="mainColor" >
                <MenuItem Header="_Black" Name="mnBlack" IsChecked="True" Click="mnBlack_Click" />
                <MenuItem Header="_Red" Name="mnRed" Click="mnRed_Click" />
                <MenuItem Header="_Blue" Name="mnBlue" Click="mnBlue_Click" />
            </MenuItem>
        </Menu>
        <TextBox Name="editor1"  HorizontalScrollBarVisibility="Visible" VerticalScrollBarVisibility="Visible" >
            Hier ist ein Text
        </TextBox>
    </DockPanel>
</Window>