This.
Pretty sure Alfonzo does not have outlines, guys. There are, at the very least, parts of him that are outline free, which would seem to be inconsistent with character outlines, even if they do vary in thickness. It's just shadows at the edges of his clothes, a trick of the lighting. Really, why would he have outlines when we know that conductor Link doesn't?
If you look at this picture, you can see some shadows around the edges of conductor Link as well, particularly his boots and the underside of his gloves. It's just a bit harder to read as shadows on Alfonzo because he's much smaller in his pic, which kills a lot of the details and makes it look like an outline instead.
Basically, a lot of you are freaking over nothing