TextButtonStyle is used to style a Button using subheader-styled text with no other adornment. There are two styles that ...

        TextButtonStyle is used to style a Button using subheader-styled text with no other adornment.  There
        are two styles that are based on TextButtonStyle (TextPrimaryButtonStyle and TextSecondaryButtonStyle)
        which are used in the GroupedItemsPage as a group header and in the FileOpenPickerPage for triggering
        commands.