Often times when I am showing my Treo off to other "680Addicts" they ask "How did you get your Treo to look like that. The fonts are different and the colors are different as well." The answer is simple, two programs, FontSmoother and Colorize. This dynamic duo has been upgraded to a trio (no pun intended) due to the recent release of Skinner for the 680.
Skinner works flawless and as Sammy mentioned yesterday is on sale right now at a discounted price. Colorize is a program that changes the colors of the UI. The best part about it is it is FREE. I love the wide range of skins available for skinner as well as the wide variety of color combos you can pick with Colorize.
FontSmoother has the widest variety of options when coupled with the available desktop software. You can convert any font from your computer into the font of choice on your Treo. FontSmoother has been around for a while and the newest version does not require a hack program. If you are looking to give your Treo a fresh new look then check these programs out!