Avalonia/samples/RenderTest/Pages/DrawingPage.xaml

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <UserControl.Styles>
        <Style>
            <Style.Resources>
                <DrawingGroup x:Key="Bulb">
                    <DrawingGroup.Transform>
                        <MatrixTransform Matrix="1,0,0,1,0,-1028.4" />
                    </DrawingGroup.Transform>
                    <DrawingGroup>
                        <DrawingGroup.Transform>
                            <MatrixTransform Matrix="1,0,0,1.25,-10,1031.4" />
                        </DrawingGroup.Transform>
                        <GeometryDrawing Brush="#FF7F8C8D"
                                         Geometry="F1 M24,14 A2,2,0,1,1,20,14 A2,2,0,1,1,24,14 z" />
                    </DrawingGroup>
                    <GeometryDrawing Brush="#FFF39C12"
                                     Geometry="F1 M12,1030.4 C8.134,1030.4 5,1033.6 5,1037.6 5,1040.7 8.125,1043.5 9,1045.4 9.875,1047.2 9,1050.4 9,1050.4 L12,1049.9 15,1050.4 C15,1050.4 14.125,1047.2 15,1045.4 15.875,1043.5 19,1040.7 19,1037.6 19,1033.6 15.866,1030.4 12,1030.4 z" />
                    <GeometryDrawing Brush="#FFF1C40F"
                                     Geometry="F1 M12,1030.4 C15.866,1030.4 19,1033.6 19,1037.6 19,1040.7 15.875,1043.5 15,1045.4 14.125,1047.2 15,1050.4 15,1050.4 L12,1049.9 12,1030.4 z" />
                    <GeometryDrawing Brush="#FFE67E22"
                                     Geometry="F1 M9,1036.4 L8,1037.4 12,1049.4 16,1037.4 15,1036.4 14,1037.4 13,1036.4 12,1037.4 11,1036.4 10,1037.4 9,1036.4 z M9,1037.4 L10,1038.4 10.5,1037.9 11,1037.4 11.5,1037.9 12,1038.4 12.5,1037.9 13,1037.4 13.5,1037.9 14,1038.4 15,1037.4 15.438,1037.8 12,1048.1 8.5625,1037.8 9,1037.4 z" />
                    <DrawingGroup>
                        <DrawingGroup.Transform>
                            <MatrixTransform Matrix="1,0,0,1,9,1045.4" />
                        </DrawingGroup.Transform>
                        <GeometryDrawing Brush="#FFBDC3C7">
                            <GeometryDrawing.Geometry>
                                <RectangleGeometry Rect="0,0,6,5" />
                            </GeometryDrawing.Geometry>
                        </GeometryDrawing>
                    </DrawingGroup>
                    <GeometryDrawing Brush="#FF95A5A6"
                                     Geometry="F1 M9,1045.4 L9,1050.4 12,1050.4 12,1049.4 15,1049.4 15,1048.4 12,1048.4 12,1047.4 15,1047.4 15,1046.4 12,1046.4 12,1045.4 9,1045.4 z" />
                    <GeometryDrawing Brush="#FF7F8C8D"
                                     Geometry="F1 M9,1046.4 L9,1047.4 12,1047.4 12,1046.4 9,1046.4 z M9,1048.4 L9,1049.4 12,1049.4 12,1048.4 9,1048.4 z" />
                </DrawingGroup>
            </Style.Resources>
        </Style>
    </UserControl.Styles>
    <Grid RowDefinitions="Auto,Auto,Auto"
          ColumnDefinitions="Auto,Auto,Auto,Auto">
        <TextBlock Text="None"
                   Margin="3" />
        <Border Grid.Column="0"
                Grid.Row="1"
                VerticalAlignment="Top"
                HorizontalAlignment="Left"
                BorderThickness="1"
                BorderBrush="Gray"
                Margin="5">
            <DrawingPresenter Drawing="{StyleResource Bulb}" />
        </Border>
        <TextBlock Text="Fill"
                   Margin="3"
                   Grid.Column="1" />
        <Border Grid.Column="1"
                Grid.Row="1"
                VerticalAlignment="Top"
                HorizontalAlignment="Left"
                BorderThickness="1"
                BorderBrush="Gray"
                Margin="5">
            <DrawingPresenter Drawing="{StyleResource Bulb}"
                              Width="100"
                              Height="50"
                              Stretch="Fill" />
        </Border>
        <TextBlock Text="Uniform"
                   Margin="3"
                   Grid.Column="2" />
        <Border Grid.Column="2"
                Grid.Row="1"
                VerticalAlignment="Top"
                HorizontalAlignment="Left"
                BorderThickness="1"
                BorderBrush="Gray"
                Margin="5">
            <DrawingPresenter Drawing="{StyleResource Bulb}"
                              Width="100"
                              Height="50"
                              Stretch="Uniform" />
        </Border>
        <TextBlock Text="UniformToFill"
                   Margin="3"
                   Grid.Column="3" />
        <Border Grid.Column="3"
                Grid.Row="1"
                VerticalAlignment="Top"
                HorizontalAlignment="Left"
                BorderThickness="1"
                BorderBrush="Gray"
                Margin="5">
            <DrawingPresenter Drawing="{StyleResource Bulb}"
                              Width="100"
                              Height="50"
                              Stretch="UniformToFill" />
        </Border>

        <!-- For comparison -->
        
        <Ellipse Grid.Row="2"
                 Grid.Column="0"
                 Width="100"
                 Height="50"
                 Stretch="None"
                 Fill="Blue"
                 Margin="5"/>
        <Ellipse Grid.Row="2"
                 Grid.Column="1"
                 Width="100"
                 Height="50"
                 Stretch="Fill"
                 Fill="Blue"
                 Margin="5" />
        <Ellipse Grid.Row="2"
                 Grid.Column="2"
                 Width="100"
                 Height="50"
                 Stretch="Uniform"
                 Fill="Blue"
                 Margin="5" />
        <Ellipse Grid.Row="2"
                 Grid.Column="3"
                 Width="100"
                 Height="50"
                 Stretch="UniformToFill"
                 Fill="Blue"
                 Margin="5" />
        
    </Grid>
</UserControl>