The last theme I used was based upon the fantastic WordPress Themer Kit, which is an incredible tool for people who either have little graphic design skill or who don’t want to build a new theme from scratch. Ultimately, I just don’t have the skill, time, or inclination to build an aesthetically pleasing theme. (But, let’s be real, its mostly the lack of skill thing).
That said, I am good at adjusting and incorporating. The original Aeros theme looked significantly different than the one you see. I’ve changed the background color, removed the slight transparency, highlighted the different sidebar sections, and moved the top menu to the left side. Since the theme was open source, this mostly involved tinkering with the CSS and underlying PHP.