The Elementary Tweaks tool for elementaryOS has been released a few days ago. Elementary Tweaks tool is a tool similar with Gnome Tweak tool, enabling the users to customize their desktop easily.
ElementaryOS 0.2 beta 2 includes new features and better integration for the Pantheon desktop environment. Optionally, you can install the Nitrux and El Faenza icon sets, adjusted for elementaryOS and new Plank themes, and activate them with the Elementary Tweaks tool.
To customize your elementaryOS icons, fonts, Plank or Slingshot options, install ElementaryOS Tweaks Tool.
How to install Elementary Tweaks Tool on elementaryOS Luna:
$ sudo apt-add-repository ppa:versable/elementary-update
$ sudo apt-get update
$ sudo apt-get install elementary-tweaks
Install new elementaryOS themes:
$ sudo apt-get install elementary-dark-theme elementary-plastico-theme elementary-whit-e-theme elementary-harvey-theme
Install new icons:
$ sudo apt-get install elementary-elfaenza-icons elementary-nitrux-icons
Install Plank themes:
$ sudo apt-get install elementary-plank-themes