In case, like me, you wondered what an "Interceptor window" was: "NeXT also have an internal kit called Interceptor Kit, which allows a privileged application

In case, like me, you wondered what an "Interceptor window" was: "NeXT also have an internal kit called Interceptor Kit, which allows a privileged application to punch a hole through the Postscript windowserver directly to the display card." https://www.paullynch.org/NeXTSTEP/NeXTSTEP.TechReview.html https://www.paullynch.org/NeXTSTEP/NeXTSTEP.TechReview.html