Home (Top right)
Account (In the drop down)
Styles and Themes (4th Option to the right)
While here you can view other created Themes and Official Themes
and also create your own one.
Click on the buttom to the right of
Customize Chess.com!
In your theme, you can change the color of text, display boxes, drop downs and more. You can also add a background and change icons that are displayed. After you are done with theme and like what it looks like, click save theme and it will be added to http://www.chess.com/home/themes All themes and My themes tabs in the Custom Themes Page
The theme I am using is one I created called LCP.
How do I create a theme? Also, if I do, can I delete it and make another one?