One of the most famous pictures ever to grace the ST was in fact an example picture from NEOchrome. The breathtaking waterfall with animated water flowing down was achieved with NEOchrome's colour cycling feature, it was and remains one of the most recognisable pictures ever on the ST.
The author of NEOchrome, David Staugas, was a system programmer at Atari and was co-author of the Atari ST's operating system. The knowledge acquired from this obviously paid off since he delivered a fully featured art package in just 40K.
The feature set and interface of the NEOchrome paint program was defined by Jerome Domurat. Note that many of the icons are on a 45 degree angle. This revealed less distortion when switching resolutions. Jerome is also known for the creation of system icons, cursors, typefaces and human interface issues for the Atari ST computer.