I recently installed new version of linux (Ubuntu Intrepid ibex) on my secondary computer and i wanted to customize it like i am used to customize windows. I tried a lot of gnome themes and found many beautiful and elegant looking themes which enhance your desktop with different colors, corners, buttons and scroll bar styles. I filtered some of the best looking gnome themes to share on TechieSouls. After downloading themes you have to install them, the following screenshot will guide you how to install theme in ubuntu and gnome interface. Install apply and enjoy!
Simple and elegant changes to Ubuntu's default theme give it a clean interface. It doesn't look like a Windows desktop or an Apple one. It's simply Ubuntu: classed up.
2. Zukitre Shell
An off-black theme that does everything well. If you've used GTK then you might recognize this theme.
Lexis is cool in that it cleans up the top bar from Ubuntu and gives the dock a simple look. If you're installing Ubuntu or Gnome for someone that's never used the interface before, this is the theme with the most intuitive and simple interface.