Windows Phone 8.1: How to Change ListPickerFlyout Header Text Color

Question

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

The color of my name, regardless of theme, is always white. How to change the color of the title so that it can adapt to various topics?

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

I could redefine the brush theme to be always white, which might cause this problem. The solution I'm looking for is something that can help me make the color adaptable to the local theme, to this particular file the button is in, this should not affect other places / headers.

I would be very happy if someone could point me in the right direction. Thanks in advance.