It seemed of the highest importance to T’Rain’s art directors that these coins look as flashy as their high value implied, and so they gleamed, sending out flashes of colored light as they were passed from hand to hand. Plain old yellow stuff was changing hands in the plaza around the amphitheater, frequently being bulk converted, by strolling moneychangers, into Red Gold coins that were making their way over the rim of the pit and transacting lively commerce in its upper reaches, making a flashing red constellation, as if LEDs were blinking all over the place. But farther down, the predominant color was Blue; and at the bottom it deepened to Indigo.