Emerald Window Decorator is not available in the Ubuntu 11.10 Oneiric Ocelot repositories so to make it easier to install, I've uploaded the latest stable Emerald version (0.9.5) to the main WebUpd8 PPA.
With Emerald, you can get some beautiful window decorators, like the one in the screenshot above, or these:
And many others.
Install Emerald in Ubuntu 11.10 Oneiric Ocelot
Note: Emerald requires Compiz, so it doesn't work with GNOME Shell, etc.
To add the PPA and install Emerald 0.9.5 in Ubuntu 11.10 Oneiric Ocelot, use the commands below:
sudo add-apt-repository ppa:nilarimogard/webupd8 sudo apt-get update sudo apt-get install emerald
For Ubuntu 11.04 Natty Narwhal, see: Get Emerald To Work In Ubuntu 11.04 Natty Narwhal
Once installed, get some Emerald themes via Gnome Look, load them in Emerald Theme Manager, and start Emerald by pressing ALT + F2 and entering:
To continue using Emerald after a logout / restart, install CompizConfig Settings Manager:
sudo apt-get install compizconfig-settings-manager
Then open CCSM, click the "Window Decoration" plugin and under "Command", enter: "emerald".
If you want to go back to the default window decorator, open CompizConfig Settings Manager, click the "Window Decoration" plugin again and next to "Command", click the reset button on the right:
Then log out and log back in.
Post inspired by tahutek.net