This document discusses color extension and analysis, specifically analyzing how much color there is, how color works, and how strong or visually impactful different colors are based on their brilliance, amount used, and ratios. It examines contrast of extension which involves the proportion of colors and how two factors - a color's brilliance or value and its amount - determine its use. An example is given of how a small amount of red can be visually important despite its small physical size through its contrast.