All things modern.
So this tweak isnt exactly ‘essential’ but it gives windows 7 such a nice look and feel that it should have been included in the built in feature set of windows. I am talking about the ability to change the background of the login screen. This little program makes it as simple as changing the desktop background.
Now you can customise your login screen and prevent those harsh transistions from bright green login screen to nice dark wallpaper.