code: public static AreaI area(final AreaSizeI size)
    {
      Objects.requireNonNull(size, "Size");
      return AreaI.of(0, size.sizeX(), 0, size.sizeY());
    }
docs: Construct an area at the origin that has the same size as {@code size}.
  
  @param size The area size
  
  @return An area at the origin