Post without Account — your post will be reviewed, and if appropriate, posted under Anonymous. You can also use this link to report any problems registering or logging in.
In 2.027 (and probably all the way back), line #238 should set 'D' property instead of 'ML'. Line #258 should set 'RI' instead of 'FL'.
Also, the module has no strictures enabled, and if we turn them on, then it dies in line #44, because of unknown '$self'. It's unclear what this method ('new_api') is supposed to do (and if it was ever used at all because of this bug), i.e. when we should use it -- both reading code and very cryptic pod.
Plus, I had to look up what on Earth is the "Halftone Phase" - it's from the Display Postscript extensions, was described in Postscript Level2 Manual, briefly mentioned in PDF 1.2 and gone without a trace in later references. I think there's no need nor support for it anymore. Rather (it goes to wishlist ) the 'SMask' ExtGState parameter would be implemented.