long time was the standard for most input peripherals for the Macintosh, first appeared on the IIGS. In addition, the other standardized ports and addition of SCSI set a benchmark which allowed, for the first time, Apple to consolidate their peripheral offerings across both the Apple II and Macintosh product lines, permitting one device to be compatible with multiple, disparate computers. The IIGS is also the first Apple product to bear the new brand-unifying color scheme, a warm gray color Apple dubbed "Platinum". This color would remain the Apple standard used on the vast majority of products for the next decade. The IIGS is also the second major computer design, after the Apple IIc, where Apple worked with Hartmut Esslinger's team at Frog Design. The consistent use of the new corporate color and matching peripherals ushered in the Snow White design language, which was used exclusively for the next five years and made the Apple product line instantly recognizable around the world. The inclusion of a professional-grade sound chip in the Apple IIGS was hailed by both developers and users, and hopes were high that it would be added to the Macintosh; however, it drew another lawsuit from Apple Corps. As part of an earlier trademark dispute with the business arm of The Beatles, Apple Computer had agreed not to release music-related products. Apple Corps considered the inclusion of the Ensoniq chip in the IIGS a violation of that agreement. Developers John Carmack, co-founder of id Software, started his career by writing commercial software for the Apple IIGS, working with John Romero and Tom Hall. Wolfenstein 3D, based on the 1981 Apple II game Castle Wolfenstein, came full-circle when it was released for the Apple IIGS in 1998. Two mainstream video games, Zany Golf and The Immortal, both designed by Will Harvey, originated as Apple IIGS games that were ported to other platforms, including the Sega Genesis. Pangea Software started as an Apple IIGS game developer. Naughty Dog started with the classic Apple II machines, but later developed for the IIGS. Rumors and canceled developments In August 1988, inCider magazine reported Apple was working on a new Apple IIGS. It was stated it had a faster CPU, improved graphics (double the vertical resolution, 256 colors per scanline and 4,096 colors per screen), 768 KB of RAM, 256 KB of ROM, 128 KB of sound DOC-RAM and a built-in SCSI port.