iShadow

iShadow is a simple addon that adds a shadowed border to the UI window. Nothing more, nothing less! Memory usage is nihil, the file is so big because of the high-res texture.

Usage
Install and go!
Use the /shadow # command where # is a number 0-100 to set the level of shadow in percentages.

/shadow 100 sets the maximum shadow,
/shadow 0 hides the shadow
/shadow 50 is half the shadow.