Here's a comment from 2016 that quotes technical discussions from 1988. It is clear that the Display Postscript implementers had detailed knowledge of NeWS.
"In a few cases they picked the same names and operator spec as us, but in general they didn't try to be compatible. A few incompatibilities seem gratuitious to me."
"In a few cases they picked the same names and operator spec as us, but in general they didn't try to be compatible. A few incompatibilities seem gratuitious to me."
https://news.ycombinator.com/item?id=11520455