MainWindow.xaml

<Window x:Class="ExampleApp.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:controls="clr-namespace:GradientTheme.Controls;assembly=GradientTheme"
        xmlns:sys="clr-namespace:System;assembly=mscorlib"
        mc:Ignorable="d"
        Title="MyApp" Height="450" Width="800"
        MouseDown="MainWindow_OnMouseDown"
        Style="{DynamicResource GradientWindow}">
    
    <Border Style="{DynamicResource WindowBorder}">
        <DockPanel>
            <Grid>
                <Grid.RowDefinitions>
                    <RowDefinition Height="50" />
                    <RowDefinition Height="*" />
                </Grid.RowDefinitions>
                
                <!-- Toolbar grid -->
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="auto" />
                        <ColumnDefinition Width="*" />
                        <ColumnDefinition Width="auto" />
                        <ColumnDefinition Width="auto" />
                        <ColumnDefinition Width="auto" />
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="*" />
                        <RowDefinition Height="24" />
                        <RowDefinition Height="*" />
                    </Grid.RowDefinitions>
                    
                    <Label Grid.Column="0" Grid.Row="1" Content="{Binding RelativeSource={RelativeSource AncestorType={x:Type Window}}, Path=Title}" Style="{DynamicResource WindowTitle}" />
                    
                    <Menu Grid.Column="1" Grid.Row="1" Style="{DynamicResource MenuStyle}">
                        <MenuItem Header="File" Style="{DynamicResource MenuItemStyle}">
                            <MenuItem Header="test" Style="{DynamicResource MenuItemStyle}"/>
                        </MenuItem>
                        <MenuItem  Header="Tools" Style="{DynamicResource MenuItemStyle}"/>
                        <MenuItem  Header="Another one" Style="{DynamicResource MenuItemStyle}"/>
                        <MenuItem  Header="Help" Style="{DynamicResource MenuItemStyle}"/>
                    </Menu>
                    
                    <Button Grid.Row="1" Grid.Column="2" Content="_" Click="MinimizeBtn_OnClick" Style="{DynamicResource ControlBarButton}" />
                    <Button Grid.Row="1" Grid.Column="3" Content="X" Click="CloseBtn_OnClick" Style="{DynamicResource ControlBarButton}" />
                </Grid>
                <!-- .Toolbar Grid -->
                
                <!-- Title header -->
                <Grid Grid.Row="1">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="10*" />
                        <ColumnDefinition Width="70*" />
                        <ColumnDefinition Width="20*" />
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="*" />
                        <RowDefinition Height="*" />
                    </Grid.RowDefinitions>
                    
                    <controls:TyperLabel Grid.Row="0" Grid.Column="1" Style="{DynamicResource TitleStyle}" >
                        <!-- Important that we supply at least one title, if not we will crash! -->
                        <controls:TyperLabel.Titles>
                            <x:Array Type="{x:Type sys:String}">
                                <sys:String>One Title</sys:String>
                                <sys:String>Another Title</sys:String>
                                <sys:String>Great Title</sys:String>
                            </x:Array>
                        </controls:TyperLabel.Titles>
                    </controls:TyperLabel>
                    
                    <Label Grid.Row="1" Grid.Column="1" Content="A nice subdescription" Style="{DynamicResource SubheaderStyle}" />
                </Grid>
            </Grid>
        </DockPanel>
    </Border>
</Window>