In the definition of <basic-shape> for 'offset-path', there's a paragraph that states:

If a circle or ellipse basic shape has no explicit center position, the shape is centered at the [=initial position=] of the path, as described in 'offset-position'.

This contradicts Shapes 1, which simply defaults an omitted center-position to "center" without making it configurable.

Worse, this means that 'offset-position' now does two completely unrelated things - for ray(), it sets where the ray emerges from (aka where offset-distance: 0% places you), but for circle() and ellipse() it (sometimes!) sets the center of the ellipse, which is not a point on the path at all.

I don't understand why this is necessary; you can just set the center position directly in the function if you need to, and if you omit it I think it's confusing for it not to act like an omitted position in other contexts. To get the default behavior that Shapes defines I have to explicitly say circle(... at center).

Can we just drop this odd behavior and have circle()/ellipse() default their center position as normal?