https://marco.org/2007/10/29/leopards-new-look-has-been-compared-to-the-aero
Leopard’s new look has been compared to the Aero Glass look in Windows Vista. While I think there are few legitimate similarities, this comparison comes up as often as it does because the two designs share one prominent attribute: the gratuitous, inappropriate use of translucency to the detriment of usability.