[C#/WPF] Button 엘리먼트 : Template 속성 사용하기

<Button Width="150" Height="150">
    <Button.Template>
        <ControlTemplate TargetType="{x:Type Button}">
            <Grid Margin="5">
                <Ellipse
                    Stroke="DarkBlue"
                    StrokeThickness="2">
                    <Ellipse.Fill>
                        <RadialGradientBrush
                            Center="0.3,0.2"
                            RadiusX="0.5"
                            RadiusY="0.5">
                            <GradientStop Offset="0.1" Color="Azure"          />
                            <GradientStop Offset="1.1" Color="CornflowerBlue" />
                        </RadialGradientBrush>
                    </Ellipse.Fill>
                </Ellipse>
                <ContentPresenter
                    Name="contentPresenter"
                    HorizontalAlignment="Center" 
                    VerticalAlignment="Center" />
            </Grid>
        </ControlTemplate>
    </Button.Template>
    <Button.Content>
        Click Me!
    </Button.Content>
</Button>