OptionalcontrolThe point the curve is pulled toward, in the sketch's x and y.
OptionaltoWhere the curve ends, in the sketch's x and y.
OptionalrelativeWhen true, control and to are offsets from where the pen is rather than points of the sketch.
OptionalidA name for the command, reported with the edges it draws; leave it out to be named by position.
A control point and a point to end at, for
sketch.commands.quadratic, which makes the quadratic Bezier commandsketch.pendraws from where the pen is.