Profile for ElvUI. You need:
- ElvUI Addon Skins
- ElvUI Shadow & Light
Download all these from http://www.tukui.org/
All credit goes to Tukz and Elv.
The unzipped file belongs in:
World of Warcraft > WTF > Account > Your account name > Saved Variables
There are two profiles there, Button 10 and Button 12. They are identical except that one of them has 10 buttons visible and the other has 12 :P