Just last week, popular drawing app Paper was updated with a brand new color mixer that was over a year in the making. FastCompany spoke to the app's designers about the difficulties they encountered in the development of this deceptively simple, user-friendly tool, which represents a significant departure from the traditional color picker. After trying to create an algorithm to simulate color blending, they found that the way computers calculate color is difficult to reconcile with how people are familiar with blending. Instead, the FiftyThree developers turned to a German scientific study from 1931 for help. To read more on the fascinating creation of this innovative tool, read the full article at the source link below.