This theme used transparency effect at minimum level and many unique little things that even you can see. One of them that I like it so much is the alt-tab  windows image modification, you can see some change here when you mouseover the tab windows in the status bar or using alt-tab function by keyboard. But I don’t like the main color that used by vista clone x2 theme.

Title: Vista Clone x2
Author: kmf1
Download: Vista Clone X2 Theme