The Greenfinch branding guidelines document outlines the proper usage of the company's logo, colors, typography, and layout standards. There are two main versions of the Greenfinch logo - the tag logo, which should be used at the top of documents, and a secondary logo for within documents. The color palette is centered around dark and light teals, with yellow and magenta as optional accent colors. Segoe UI Light is the primary typeface. Layout guidelines specify margins, heading styles, and cover/body/end slide formats for presentations and stationary layouts.