To customize your eportfolio, you need to go to change the default settings in the CSS code box. To get to the CSS code box, you need to go to "portfolio tools" click on "settings" and that will bring you to the settings page. Once on the settings page, click on the "customize" button located under the default style theme section. Scroll down to the custom CSS box. There you will see various codes, each allowing you to change different parts of your eportfolio site.
If you ever want to change back to the default settings, just click on "reset" located at the custom CSS section.