Hard Edges 
are typically used when editing and cleaning clipart for designing over, such as when using the ExpressDesign Assistant or creating designs in mySewnet™ Digitizing. The Tools give a pixelated edge.
Note: Tools such as Blur, Highlight and Lowlight that would create a gradient or semi-transparency are grayed out.
To use a Hard Edge tool
-
In the Paint Tab
of the Design Panel 
, in Mode choose Hard Edges 
. -
Choose Paint > Hard Edges.