Dad properties

[Larry]

What is this icon at the bottom of the screen with four
arrows pointing toward the center of a square and what
does it do? Nothing turns up in help nor in a search of
Microsoft.

 

[Maureen Goldman]

What is this icon at the bottom of the screen with four
arrows pointing toward the center of a square and what
does it do? Nothing turns up in help nor in a search of
Microsoft.

With my media players, that's the symbol of a control to make the
screen larger.