Avalonia/samples/ControlCatalog/Pages/CanvasPage.paml

<UserControl xmlns="https://github.com/perspex">
  <StackPanel Orientation="Vertical" Gap="4">
    <TextBlock Classes="h1">Canvas</TextBlock>
    <TextBlock Classes="h2">A panel which lays out its children by explicit coordinates</TextBlock>
    <Canvas Background="Yellow" Width="300" Height="400">
      <Rectangle Fill="Blue" Width="63" Height="41" Canvas.Left="40" Canvas.Top="31"/>
      <Ellipse Fill="Green" Width="58" Height="58" Canvas.Left="160" Canvas.Top="79"/>
      <Path Fill="Orange" Data="M 0,0 c 50,0 50,-50 c 50,0 50,50 h -50 v 50 l -50,-50 Z" Canvas.Left="30" Canvas.Top="250"/>
      <Line StartPoint="120,185" EndPoint="30,115" Stroke="Red" StrokeThickness="2"/>
      <Polygon Points="75,0 120,120 0,45 150,45 30,120" Stroke="DarkBlue" StrokeThickness="1" Fill="Violet" Canvas.Left="150" Canvas.Top="180"/>
      <Polyline Points="0,0 65,0 78,-26 91,39 104,-39 117,13 130,0 195,0" Stroke="Brown" Canvas.Left="30" Canvas.Top="350"/>
    </Canvas>
  </StackPanel>
</UserControl>