Your profile pic is done through your WordPress profile, which uses Gravatar. https://en.gravatar.com/
Not a dumb question at all. A good one, in fact. There are probably other people wondering this, too.
Hope this helped. 🙂
This is likely to sound like a totally ridiculous question and perhaps even answered in the past (I did a search and couldn’t find it), but how in the world do we put a picture on our profile page on here? I don’t have an option to upload my author photo. Is it just me?