问题
Prior to version 5.420.10222.0 of the Xbox Game Bar, I was able to make my Widget transparent with the Game Bar visible by setting the Widget Page Background to Background={ThemeResource SystemControlTransparentBrush}.
After this update, the widget is only transparent AFTER I hide the Game Bar. The Widget Transparency Sliders under Open Game Bar > Settings > Personalization do nothing to the transparency of all widgets until Game Bar is hidden once again.
I tried this on the three QA/Test machines I had access to make sure it wasn't a problem with one machine.
Questions:
- Is this a bug that was introduced as part of the update or intentional?
- How else can I make my Widget Transparent in all states (Game Bar visible/released and Widget Transparency On/Off)
来源：https://stackoverflow.com/questions/64673315/how-do-i-make-an-xbox-game-bar-widget-transparent-while-game-bar-is-visible