What is the difference between AutoCAD's Hatch and SuperHatch?
Hatches are constructed from straight line segments and can be clipped by straight and curved boundaries when inserted. Curved pattern elements are approximated by straight line segments.
Superhatches are rectangular tiled arrays of blocks or images clipped by straight boundary segments when inserted. Curved hatch boundaries are approximated by straight boundary segments.
HatchKit edits Hatches but not Superhatches.