Currently: “Options for the shape include Circle, Square, Triangle, and Line.” However, the ‘square’ is actually a rectangle and can be adjusted in both height and width.
Basically we need ‘square’ renamed (to rectangle), and an ‘ellipse’ - which is a circle that can be adjusted in height and width (instead of just radius).
The current ‘circle’ should be complemented by adding the missing ‘standard geometric shapes’: equilateral triangle, square (equilateral rectangle), pentagon, and hexagon. These would just have one size parameter: radius
Note: My specific need was for drawing the lunar shadow, which is the progression of a circular shape over the surface of a sphere (i.e. a flattened circle).