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            <ImageBrush ViewportUnits="Absolute"   TileMode="Tile" Viewport="0,0,500,500">
                <ImageBrush.ImageSource>
                    <BitmapImage UriSource="background.png"/>
                </ImageBrush.ImageSource>
            </ImageBrush>
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        <Path Stroke="Red" StrokeThickness="2" >
            <Path.Data>
                <PathGeometry>
                    <PathGeometry.Figures>
                        <PathFigure StartPoint="0,0">
                            <PathFigure.Segments>
                                <BezierSegment  Point1="50,100"   Point2="150,200" Point3="200,200" />
                            </PathFigure.Segments>
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            </Path.Data>
        </Path>
        <Path Stroke="Orange" Fill="Orange"  >
            <Path.Data>
                <EllipseGeometry Center="50,100" RadiusX="3" RadiusY="3" />
            </Path.Data>
        </Path>
        <Path Stroke="Orange" Fill="Orange"  >
            <Path.Data>
                <EllipseGeometry Center="150,200" RadiusX="3" RadiusY="3" />
            </Path.Data>
        </Path>
    </Canvas>