There are 8 headers and 22 themes displayed below. A header or "banner" runs across the top and appears on every page except on sales or landing pages. Choose one of the available Headers here or create your own using free banner/header creation websites like BannerSnack.com. Make sure your custom banner is at least 940px wide. A theme dictates the look and style of your website. Your theme is made up of a range of things, such as font types and sizes, your color scheme and other areas that affect the aesthetics of your site. Most can be altered if necessary.
All of these theme options are just a starting point. Your selected theme is highly dynamic in nature, and all colors, fonts, etc. are easily changed.