For his project Blues Before Sunrise, organized by the Stedelijk Museum in Amsterdam this past March, British artist and filmmaker Steve McQueen fitted all 275 lights in the Vondelpark with blue filters (Lee #075, Evening Blue). Suddenly Amsterdam’s equivalent of Central Park was bathed in intense midnight blue each evening and night. Dog owners lost track of their four-footed companions, evening joggers faded to dim phantoms, and the cyclists who, in a proud Amsterdam tradition, refuse to use lights of their own whooshed past each other in the azure glow like birds over a darkened sea. Many