I was never really satisfied with the theme I came up with earlier this year for the web site. The negative space of the background mostly put me off. The red color, which I thought was neat at first, along with the logo, just didn't seem to give off the right vibe. I decided to change the color scheme to be a bit cooler, and then retain a redish color elsewhere.
Actually, I thought about making the header color a bright red to kind of match the old color scheme. Then I toned it down to orange, and finally to what it is now.