Make shapes transparent in Preview?

Hi everyone,

Thanks in advance for the help. Shapes (ovals, squares, etc.) used to have an outline color (that I can still change easily) & were transparent so I could just place an oval around an answer choice, text, etc. in a PDF document. Now somehow the shapes have a white fill color and I cannot see the text beneath. I've tried messing with the opacity, etc. but am clearly doing something wrong. This has been incredibly frustrating as I require this ability to mark up answer choices on PDF question sets I take (I am a medical student). Any help would be greatly appreciated!

Thanks,
Nick

Welcome to the forum.

Select the shape you want to use, say an oval then from the Color Menu drop down select no fill