Windows Phone 8.1: How to change the color of the

问题:

I have a Windows Phone 8.1 Application. I have a button with a ListPickerFlyout in it.

The color of my title regardless of the theme is always white. How do I change the color of the title so that it can adapt to the different themes?

<Button x:Name="myButton">
    <Button.Flyout>
        <ListPickerFlyout x:Name="myListPicker" PickerFlyoutBase.Title="HELLo">
            </ListPickerFlyout>
        </Button.Flyout>
</Button>

I might have overridden a themebrush to be always white which might be causing this issue. The solution I'm looking for is something that can help me make the color adaptable to the theme local to this particular file in which the button resides, it shouldn't affect other places/titles.

I would be very glad if someone can point me in the right direction. Thanks in advance.