PowerToys/src/modules/registrypreview/RegistryPreview/RegistryPreviewXAML/MainWindow.xaml

<winuiex:WindowEx
    x:Class="RegistryPreview.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:tk7controls="using:CommunityToolkit.WinUI.UI.Controls"
    xmlns:tkcontrols="using:CommunityToolkit.WinUI.Controls"
    xmlns:ui="using:CommunityToolkit.WinUI"
    xmlns:winuiex="using:WinUIEx"
    MinWidth="480"
    MinHeight="320"
    Closed="Window_Closed"
    mc:Ignorable="d">
    <Window.SystemBackdrop>
        <MicaBackdrop />
    </Window.SystemBackdrop>

    <Grid x:Name="MainGrid" Loaded="Grid_Loaded">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <Grid
            x:Name="titleBar"
            Grid.Row="0"
            Height="32"
            Margin="16,0"
            ColumnSpacing="16"
            IsHitTestVisible="True">
            <Grid.ColumnDefinitions>
                <!--<ColumnDefinition x:Name="LeftPaddingColumn" Width="0"/>-->
                <ColumnDefinition x:Name="IconColumn" Width="Auto" />
                <ColumnDefinition x:Name="TitleColumn" Width="Auto" />
                <!--<ColumnDefinition x:Name="RightPaddingColumn" Width="0"/>-->
            </Grid.ColumnDefinitions>
            <Image
                Grid.Column="0"
                Width="16"
                Height="16"
                VerticalAlignment="Center"
                Source="../Assets/RegistryPreview/RegistryPreview.ico" />
            <TextBlock
                x:Name="titleBarText"
                Grid.Column="1"
                VerticalAlignment="Center"
                Style="{StaticResource CaptionTextBlockStyle}"
                Text="{Binding ApplicationTitle}" />
        </Grid>

    </Grid>
</winuiex:WindowEx>