UWP MenuFlyout 重设背景颜色

                    <MenuFlyout.MenuFlyoutPresenterStyle >
              
                        
                        <Style TargetType="MenuFlyoutPresenter">
                            <Setter Property="Background" Value="{ThemeResource SystemControlAcrylicElementBrush}"></Setter>
                        
                        </Style>
                    </MenuFlyout.MenuFlyoutPresenterStyle>