UNO is a nice interface enhancer for the Mac. Mac OS X looks great, no arguments there, but if you ever get tired of the various themes of Brushed Metal, iTunes, and Aqua, then you might consider unifying the appearance with UNO. Installation is simple, and you’ll be given three choices for various aspects of your Mac’s appearance. My personal favorite is the simple UNO interface which features a simple, clean, and modern look. It is worth nothing that UNO is free but donationware, so there are no shareware fees and unlock codes to worry about.

As you can see in this animated gif (borrowed from the developer’s page), UNO can replace the brushed metal finder appearance with a cleaner and more modern look. This slick appearance has been long rumored to be the face of Mac OS X 10.5 Leopard, although we all know how notoriously innaccurate Apple related rumors are. The UNO apps interface is simple enough, showing you a preview of what each window will look like depending on the theme you choose.

UNO requires Mac OS X 10.4.4 or later

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