"Adobe's desktop brand system is a pragmatic & systematic approach to creating a cohesive functional visual language carried across our hundred products and their thousands of branded icons and screens. With a specific emphasis on clarity and legibility, this system expresses a singular focus of better enabling our customers and their work.
Our approach is pragmatic and utilitarian, literally "less is more". We have created a concise and coherent unified language in a deceivingly simple and highly distinctive visual system – from the branded desktop work through to interface and product design. Top-level point products (authoring environments eg. Photoshop, Illustrator, etc) follow a two-letter mnemonic 'nickname' system as their primary identifier... A product's icons are paired with a specific color, usually based on historical color association (Flash is red, Dreamweaver is green) and familied within a particular vertical. This color association is carried throughout the product's desktop brand in lieu of 'primary imagery', from install screens through app icons and reinforced through details on document and supporting icons." - John Nack on Adobe