As development of the iPod progressed, Apple continued to refine the software's look and feel, rewriting much of the code. Starting with the iPod Mini, the Chicago font was replaced with Espy Sans. Later iPods switched fonts again to Podium Sans—a font similar to Apple's corporate font, Myriad. Color display iPods then adopted some Mac OS X themes like Aqua progress bars, and brushed metal meant to evoke a combination lock.
as development of the ipod progressed apple continued to refine the software's look and feel rewriting much of the code starting with the ipod mini the chicago font was replaced with espy sans later ipods switched fonts again to podium sans—a font similar to apple's corporate font myriad color display ipods then adopted some mac os x themes like aqua progress bars and brushed metal meant to evoke a combination lock