To do Alt + H + S + F on Mac in PowerPoint, download and install Accelerator Keys, then press Option, followed by H, S, then F.
Command: Shape Fill Menu
This is how to do Alt + H + S + F on Mac in PowerPoint with Accelerator Keys, the native ribbon and alt key shortcut solution for Mac users who get more done with PowerPoint.
Alt + H + S + F opens the Shape Fill menu, providing options to fill the selected shape with a solid color, picture, gradient, texture, or no fill at all.