The bluish shadows gave the place a ghostly ambiance.
—Dan Brown, Digital Fortress, 2004.
Fast-backward to my first art class, where the guru forced us to gaze without staring at snow shadows, so that we might embrace their True Blueness while giving the snort to fake black, grey, greyish-black, or blackish-grey ones. Yellowish shadows, he said, are permissible, too, sometimes, but not all the time, and only when there are dogs about. Silly guru.