Beta is a premium responsive WordPress theme for corporate business and portfolio sites. The theme comes with tons of great built-in options, templates and features built to make it easier for you to setup your website or that of your client’s. Included is the default light skin as well as a dark version which can be activated via the theme panel, so you’ll basically have 2 themes in one!
Demo: http://themeforest.net/item/beta-clean-corporate-wordpress-theme/2792443