1  <Window xmlns="https://github.com/avaloniaui"
2          xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
3          xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
4          xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
5          mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
6          x:Class="Shell.MainWindow"
7          Title="Palisa.Lili.Showcase">
8      Welcome to Avalonia!
9  </Window>