Windows 7’s new Taskbar is transparent, the start menu is transparent, many native application title is transparent. Now you can have fully semi transparent application for calculator, notepad and command line prompt. Check them out its pretty cool.
Aero Command Line Prompt
Note: when you download this command line prompt, it will not give you a new application for “cmd” instead it is a theme manipulator that will enable your exiting Command Line Prompt to act transparent.
When you launch this you will see a small icon in your notification icon that indicates you are enabling this glassy theme for your native “cmd” application
source via [WindowsClub]