Accept video call = Ctrl + Shift + A Accept audio call = Ctrl + Shift + S Decline call = Ctrl + Shift + D Start audio call = Ctrl + Shift + C Start video call = Ctrl + Shift + U Toggle mute = Ctrl + ...
Dark Mode has its drawbacks. For example, the worksheet grid usually remains white. You can choose Black under Office Theme, which activates a Dark Mode toggle in the View tab of your Excel ribbon.