I added the customize option over in the right hand pane. »»»»»

You can change the font family, color, and font size of the blog entries on the main page here. Plus you can make this main pane bigger or smaller. I only tested it in IE6, don't have any other browsers installed yet. I know my page looks a little funky in Firefox, but last time I tried to make it work in that browser I just couldn't manage it. Might be easier with a newer version though.