ofnoFill() on circle > weird ring?

I’m trying to draw a ring (a circle with no inner surface, just an outside, well, ring) but it looks a bit weird, even with the circle resolution set to 100 … it seems to be because the ring is made up of individual lines and where they meet the color is not uniform?

Sounds strange. A screenshot might help someone pinpoint the issue.

Are you using glLineWidth in an effort to make it thicker by any chance?