To celebrate the opening of Saturated: The Allure and Science of Color (May 11, 2018-January 13, 2019), Object of the Day this month will feature colorful objects from the exhibition. Niklaus Troxler (Swiss, b. 1947) designed this boldly colored poster in 2005 for the annual Willisau Jazz Festival, an event he co-founded in 1975.  Here, Troxler engages...