Emerald is a custom window decorator that is shipped with Compiz. It is one of the most and easily configurable window manager.
Emerald is usually available as an additional package and has to install seperately.
# aptitude install emerald
Once installed you can launch the Emerald Theme Manager and choose your preferred theme or customise your look and replace. Once configured
$ emerald --replace
To import interesting theme, you can go to http://www.compiz-themes.org/ to download the latest theme. To load the theme, simply use the Emerald Theme Manager to import in the .emerald file
Awesome.
