This project is only shared temporarily to ask if you see a perfect circle? I started this as a completely different project by making a circle in the vector editor, and then centering it with the new centering guide. But, what I at least see, is not a perfect circle, but a circle with two imperfections. One at approximately 100 degrees, and the other at -170.
Posted elsewhere: I don't think it's an anti-aliasing thing, because when I rotate the circle, the imperfections rotate with the circle... I think it's an SVG issue, possibly a rounding error when drawing the cubic Bezier curves that make up the circle. The SVG is sound, but it seems to me you could get this result if you round each coordinate before calculating the next curve with coordinates which are relative to the previous. Not much to do it seems, than to make sure in design time that your sprites look ok.
