ComboBox : Problem with Background / Foreground color combinations

[Spoelle]

Hover animation not always working

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Also problem with hover animation when Background="{x:Null}"; only ok when hovering the words or the border

Thanks for all your work on this fine project !!

Info:

[Keboo]

This issue is caused by the brush being derived from the Foreground color. Once the new brushes are implemented with #2435 this can be resolved.

[MichelMichels]

@Keboo the problem relies in BrushRoundConverter. For some reason it returns White for this color. This results in a non visible hover.