The current Ridgeware graphics were inspired by the O'Reilly "Nutshell" books, with some color added. Joe made (or grabbed) crude sketches of each product, then paid an artist to create "woodcut style" line art. Joe's brother (a graphic artist) added the color schemes. Each product has it's own color scheme/palette. Dekaf is the only product that is known outside Ridgeware, so we can dip into this reservoir if we still like some of the concepts.
The ridgeware graphic itself has gone through many iterations since 1998. The current one was designed by Joe's brother: