I use 2 OS, Ubuntu and Windows 8. Last time I did use Rainmeter to customize Windows 7, using the "IronMan Jarvis" theme. I was hooked for a week or 2, but it is hardly customized, and the buttons are fixed by the img provider...and so I switched to Ubuntu, because it offers more flexibility in customization and tweaking.
After few weeks of researching and tweaking, I get to fully customize the skins and theme.

Unity



I didn't customize much, because the DE is work-related, use for office tools and etc.

KDE (Ghost-theme)



This one took me the most time! But finally did it, and I'm very happy about it

This post has been edited by VincentCS: Mar 16 2014, 12:53 PM