Granted it’s perhaps not the most powerful editing tool out there and chances are you won’t be winning blog design awards any time soon but it does offer more customizability than what is currently being offered by WordPress. The Custom Design feature basically allows you to edit two things in your WordPress.com website – fonts and custom CSS. Through the fonts you will be able to select a series of fonts to be used in your site title, headings and body text. Custom CSS allows you to edit the CSS which affects the theme of the website and if you’re unclear WordPress has a supporting forum where you can pose questions to experts to help get your code up and running.
For more information just head on down to WordPress’s website. $30 a year for these added little features isn’t that expensive but perhaps spending that $30 towards a book on CSS and HTML might just be more worth it.