The top two floors of a midtown Manhattan skyscraper are the site of an experimental project exploring the phenomena of spatial color reflection or "projected color". D.E. Shaw & Co., a financial trading firm works with the miniscule drift of prices for financial instruments measured over short intervals of time. This curious and intangible business program has a parallel in the design concept of the interior. The metal framing and sheet - rock with skim - coat plaster was carved and notched at precise points around the central 31 - foot cube of space at the entry. Color has been applied to the back or bottom surfaces of these notches, invisible to the viewer within the space. Natural and artificial lights project this color back into the space around walls and fissures.