You’ve seen that if you remove the Foreground attribute, you get white text on a dark background. The background is not exactly black, but the predefined ApplicationPageBackgroundThemeBrush identifier that the Grid references is close to it.
The background is not exactly black, but the predefined ApplicationPageBackgroundThemeBrush identifier that the Grid references is close to it.背景不是全黑，但是预定义的应用程序背景页面主题笔刷识别到网格参考值接近于黑色。（外行翻译，仅供参考，谨慎采信）
