Unsetting is another graphical configuration tool for Unity, Unsetting allows you to change the themes for GTK, window manger, icons, cursors, switch off the global menu and the overlay scrollbars used in Unity, another nice feature is that Unsetting lets you to save your settings into and load from a text file (JSON format) so you can easily backup you settings or copy them to a different account.
Apart of nice features, unsetting has some limitations, for example you can not use it to change global settings or do anything else that needs root privileges and has no support of installing new themes.
Installation of Unsetting via PPA:
Open terminal and enter the following commands
sudo add-apt-repository ppa:diesch/testing sudo apt-get update sudo apt-get install unsettings
You can install also Unsetting by downloading the debian package