Hi.
I want to announce the ctx2pnm release. It's an add-on for GRX to load/save PNM (PPM, PGM and PBM) graphics files to/from contexts. It's very easy to use.
You can download it from:
http://www.terra.es/personal/malfer/grx/resourc.htm
I want to add to that page links to other GRX resources, if you have some addons or programs using GRX please drop me a note.
Greetings, M.Alvarez