📄 OutGridTree/GridTreeWindow.cs
using Avalonia.Controls;
using Avalonia.Layout;

namespace OutGridTree;

internal sealed class GridTreeWindow : Window
{
    public GridTreeWindow()
    {
        Title = "Out-GridTree";
        Width = 1080;
        Height = 720;
        WindowStartupLocation = WindowStartupLocation.CenterScreen;

        Content = new TextBlock()
        {
            Text = "Out-GridTree",
            HorizontalAlignment = HorizontalAlignment.Center,
            VerticalAlignment = VerticalAlignment.Center,
        };
    }
}