EDIT 2: Okay no problem. I was making a CTB and using that icon (e.g., men_2) as opposed to using a built-in XY button.
But, if a user does use that built-in icon (men_2), should the CTB look the way it does in the pic I attached above?
The beta notes were short and sweet, but I did find the actual buttons easily in the Customized Toolbar Menu once I realized I was using the built-in button it as a CTB (again).