The program sK1 is an open source vector graphics editor similar to
CorelDRAW, Adobe Illustrator, or Freehand. First of all sK1 is oriented
for PostScript processing. It features CMYK colorspace support, CMYK
support in Postscript, a Cairo-based engine, color managment, universal
CDR importer (7-X3 versions), and a modern Ttk based (former Tile
widgets) user interface.