<Border CornerRadius="20" BorderThickness="1" HorizontalAlignment="Left" Height="36" Margin="168,88,0,0" VerticalAlignment="Top" Width="36" BorderBrush="#FFBDD8D7">
<Border.Background>
<RadialGradientBrush GradientOrigin="0.317,-0.336" RadiusY="0.746" RadiusX="0.667">
<RadialGradientBrush.RelativeTransform>
<TransformGroup>
<ScaleTransform CenterY="0.5" CenterX="0.5" ScaleY="1" ScaleX="1"/>
<SkewTransform AngleY="0" AngleX="0" CenterY="0.5" CenterX="0.5"/>
<RotateTransform Angle="174.743" CenterY="0.5" CenterX="0.5"/>
<TranslateTransform/>
</TransformGroup>
</RadialGradientBrush.RelativeTransform>
<GradientStop Color="#FF0099FF" Offset="0.051"/>
<GradientStop Color="#FF00090A" Offset="1"/>
<GradientStop Color="#FF33CCFF" Offset="0.761"/>
<GradientStop Color="#FF24BDFF" Offset="0.438"/>
</RadialGradientBrush>
</Border.Background>
</Border>
结果如下
但我需要下面的结果。我该怎么做?