RadioButton Pointed over background color not working in dark mode - xaml

Question

This gif shows that the background of the ellipse does not change color with the pointed over event (WinUi2 Xaml Controls Gallery)
The control behaves correctly in Xaml Controls Gallery WinUI 3 (see below):
I tried modifying the Theme resources to apply a fix for the dark mode, using the testing the following resources:
<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>
However, I was unable to find the correct one for this fix. I need to modify a more obscure resource, but I was unable to find the correct one.
I tried modifying the theme resources, testing each one in order to see if I achieved the desired result.

Answer 1

Please change the value for OuterEllipse.
Like this:
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="OuterEllipse" Storyboard.TargetProperty="Stroke">
<DiscreteObjectKeyFrame KeyTime="0" Value="Red" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="OuterEllipse" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="Yellow" />
</ObjectAnimationUsingKeyFrames>
To show the difference, I change the color to Yellow and Red. The following image is what it looks like after changing its color: