Is it possible to make my own themes for Google Chrome?

I see all these themes available for my Google Chrome browser, and i see some are "made" from "artists". So I kept asking myself "Is it possible to make my own themes for Chrome without messing up my computer? If so, please let me know an easy way to make my own themes, because I want to personalize Chrome how I REALLY want it.|||Yes possible. But to do so you need some basic programming knowledge. Take a look on http://code.google.com/chrome/extensions鈥?/a> and http://code.google.com/p/chromium/wiki/T鈥?/a>