Day-Glo® : a moniker describing shades of orange, pink, green, blue, and yellow so bright they seem almost incandescent. The Day-Glo® Designer’s Guide, a trade catalogue in the Cooper Hewitt, Smithsonian Design Library, was published <a href="https://blog.library.si.edu/blog/2020/08/19/strange-brew-creating-fluorescent-pigments/#more-'" class="more-link">more »</a>