Avalonia/AvaloniaApplication4/Views/Auth.axaml

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
			 xmlns:vm="clr-namespace:AvaloniaApplication4.ViewModels"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
			 x:DataType="vm:AuthViewModel"
             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
             x:Class="AvaloniaApplication4.Views.Auth">
	<StackPanel Background="FloralWhite">
		<StackPanel>
			<TextBlock FontSize="20"  Margin="0, 5">Авторизируйтесь</TextBlock>
			<TextBlock Margin="0, 5">Логин:</TextBlock>
			<TextBox Watermark="Введите логин"/>
			<TextBlock Margin="0, 5">Пароль:</TextBlock>
			<TextBox Watermark="Введите пароль"/>
			<Button Margin="0, 5" >  Авторизироваться</Button>
		</StackPanel>
	</StackPanel>
</UserControl>