The answer is;
Bullets can be turned off and on.
Bullet styles, colors, and sizes can be changed.
Lists don't have to use bullets or numbers.
Numbering styles, colors, and sizes can be changed.
Numbers can be turned off and on.
Lists in PowerPoint presentations are ussually presented either as bulleted or numbered lists. Once you’ve put a list into your presentation, you may want to format it or even change the type of the icon, for instance, from 1 to I. You can also use smartart option found mostly in Office 365 to adjust the size, colors, and effects on the Lists. You can use bullets and numbers. You can also use roman numbers, Symbol fonts and other icons for your Lists. Turning bullets or numbers on and off is usually very easy.