A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
>> Can I change the background color in Slideshow View from black to something custom? (not referring to the slide background) This is specific to projecting 4x3 presentation on 16x9 monitors where the vertical black bars appear.
No, those will always be black.
Have a look here though:
Make screenshow fill a wide screen display