Wordpress theme could be rejected for just centering text in the widgets – it’s really a BIG CRIME (almost justifying) and every designer should know it! Hovewer theme has other padding issues and probably not so unique.
You are right. It was my fault. Here is a nice article about. http://www.learntodoitright.com/2009/01/14/how-text-alignment-affects-online-readability/
I will add this as reference for themeforest wiki documentation