Nature of defect
Description of issue
This clause mentions the <draw:contour-polygon> and <draw:contour-path> elements. However the function of purpose elements is not defined except with the words "[t]hese elements describe the contour of an image or object."
Provide a description of how a processor is to interpret these elements in an interoperable manner (by specifying how a contour is determined), or clarify that there is no interoperability intent and that interpretation is application-dependent.