Fast Filled Faked Ellipse in pen. Draws 5k ovals in about a sec. Draws a passable oval shape with just 5 to 15 pen moves.
Inspired by https://scratch.mit.edu/projects/238716501. I found move by size * SIN (steps) and set pen size to COS of (12 * steps) seem to work well for fast ovals. Don't know the maths but it gives a decent ellipse for my pen drawing projects. Not a true ellipse but a "Vesica Piscis" lens https://en.wikipedia.org/wiki/Lens_(geometry)
