此gif显示椭圆形的背景不会随着pointed over事件而改变颜色（WinUi2 Xaml控件库）

该控件在Xaml控件库WinUI 3中的行为正常（见下文）：

我试着修改主题资源来修复黑暗模式，使用测试以下资源：

<VisualState x:Name="PointerOver">
        <Storyboard>
            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter" Storyboard.TargetProperty="Foreground">
                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource RadioButtonForegroundPointerOver}" />
            </ObjectAnimationUsingKeyFrames>
            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="RootGrid" Storyboard.TargetProperty="Background">
                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource RadioButtonBackgroundPointerOver}" />
            </ObjectAnimationUsingKeyFrames>
            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="RootGrid" Storyboard.TargetProperty="BorderBrush">
                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource RadioButtonBorderBrushPointerOver}" />
            </ObjectAnimationUsingKeyFrames>
            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="OuterEllipse" Storyboard.TargetProperty="Stroke">
                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource RadioButtonOuterEllipseStrokePointerOver}" />
            </ObjectAnimationUsingKeyFrames>
            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="OuterEllipse" Storyboard.TargetProperty="Fill">
                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource RadioButtonOuterEllipseFillPointerOver}" />
            </ObjectAnimationUsingKeyFrames>
            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="CheckOuterEllipse" Storyboard.TargetProperty="Stroke">
                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource RadioButtonOuterEllipseCheckedStrokePointerOver}" />
            </ObjectAnimationUsingKeyFrames>
            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="CheckOuterEllipse" Storyboard.TargetProperty="Fill">
                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource RadioButtonOuterEllipseCheckedFillPointerOver}" />
            </ObjectAnimationUsingKeyFrames>
            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="CheckGlyph" Storyboard.TargetProperty="Fill">
                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource RadioButtonCheckGlyphFillPointerOver}" />
            </ObjectAnimationUsingKeyFrames>
            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="CheckGlyph" Storyboard.TargetProperty="Stroke">
                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource RadioButtonCheckGlyphStrokePointerOver}" />
            </ObjectAnimationUsingKeyFrames>
        </Storyboard>
    </VisualState>

然而，我无法找到正确的修复。我需要修改一个更模糊的资源，但我无法找到正确的。

我试着修改主题资源，测试每一个，看看我是否达到了预期的结果。