Heres a funky little program created by Toy_Dragon

Basically it lets you take any icon and change the overall colour or alpha level, a much faster alternative if you happen to need a whole icon recoloured/alpha changed

All credit goes to Toy_Dragon for this, I had no involvement with the creation of the Icon Tweaker.

Download Link:

2009-05/Xuiryus-0001/IconTweaker_By_Toy_Dragon.rar