http://www.fractal.com/technotes.html
As part of their Technical Support group, Fractal Design Corp. provides a series of 'Tech Notes' through this Web page to support their natural media paint programs. 'Tech Notes' cover such topics as session script text file syntax, color set text file syntax, weave structure, and information on ColorTalk, an image-editing programming language that can be accessed from Painter 3.0.