wpf窗体背景镜像渐变效果实现

<Window.Background>

<!--镜像渐变-->

<RadialGradientBrush Center="0.5,0" GradientOrigin="0.5,-0.5" RadiusX="0.7" RadiusY="1.2">

<GradientStop Color="#ff61baff" Offset="0"/>

<GradientStop Color="#ff29384e" Offset="1"/>

</RadialGradientBrush>

</Window.Background>