gEDA-user: PCB produces invalid postscript

[Karel Kulhavy <clock@xxxxxxxxxxxxx>]

PostScript LANGUAGE REFERENCE third edition Adobe Systems Incorporated,
page 211 4.8 Color Spaces line 2-3:
"A PostScript program first selects a color space by invoking the
setcolorspace operator."

This point of PostScript specification is violated in PCB's assembly.ps
output because there is not setcolorspace operator in the whole
postscript program.

CL<