Primary Message: Equality in design is positive for all.
This symbol is based on 1) the ‘smile’ emoticon ' :) ', and 2) the mathematical symbol for equal '=' and an abstracted version of the letter 'D'. Tilted diagonally, the '= D' becomes an abstracted version of a smiling face.
An emoticon, also called a smilie, is a sequence of printable characters such as :), ^-^, or :-) or a small image that is intended to represent a human facial expression and convey an emotion. Emoticons are a form of paralanguage commonly used in email messages, in online bulletin boards, or in chat rooms. The word emoticon is a portmanteau based on emotion and icon.