Daring Fireball: An Anthropomorphized Brushed Metal Interface Theme Shows Up for the WWDC Preview Build of Mac OS X Leopard Posted on June 9, 2007 by Lucien W. Dupont An Anthropomorphized Brushed Metal Interface Theme Shows Up for the WWDC Preview Build of Mac OS X Leopard (Via Daring Fireball.) This is why I pay someone money to write on a website.