Steve Troughton-Smith@Gte @marioguzman can't find it in Leopard, but it makes sense that it might correspond with more of the OS moving to Cocoa later on
Mario Guzmán@stroughtonsmith @Gte I wanted it for my shipping app, QuickTune. Now not only does the app icon update its glyph from Music’s playback state but also the minimized window will update with the album artwork so the window preview doesn’t get stale! Thanks!!!
(also good thing I ship outside the Mac App Store heh…)