There are many advantages to running a custom ROM on your phone. You get the satisfaction of having the latest firmware versions from the factory, optimizations for performance, and a ton of theming options.
In this video I highlight some of the Theming and UI visual differences between stock Froyo and Darky’s ROM which uses a lot of elements from Gingerbread 2.3
The icons and darker color schemes from Gingerbread are much better in my opinion. They are more modern, cleaner looking and much easier on the eyes. And they look brilliant on a Super AMOLED screen against the black background used in most menus now. I can tell you from first hand experience, after having Darky’s on my Samsung Galaxy S for a month, when I now look at the stock Froyo touchwiz theme with that blue every where, it looks like a children’s software theme.
And now the video: