So, you want to make your Ubuntu installation look like a mac. I’ve got just what you need. Download Mac4Lin Themes to your home directory and run the following command from a terminal:
gunzip < Mac4Lin_v1.0.tar.gz | tar xvf -
This will unzip and untar the file now run the following commands to install the mac os x theme:
This will cd to the Mac4Lin Install directory and the second command will install the mac os x theme. Congratulations, you’ve just got your linux box looking just like a mac.