The red work was made of strings of red square glass pieces that formed a red sphere and reflected red hues of light throughout the room. (thestylishflaneuse.com)
Red squares indicate the signal has increased, as more serotonin is absorbed into neurons; blue squares indicate the signal has decreased, as less serotonin is absorbed into neurons. (sciencedaily.com)
Large red square with white font provides good space for objective. (hloom.com)