set Stroke Overprint
Mark the stroke of the given design block as overprint for PDF export.
The flag is only honored by the PDF writer when the stroke uses a spot color (Separation/DeviceN). For process-color strokes it is a silent no-op. On-screen rendering ignores the flag.
Required scope: "stroke/change"
Parameters
block
the block whose stroke overprint flag should be set.
overprint
if true, the stroke is marked as overprint in exported PDFs.