Twenty Ten has two page options which can be selected for any page. Either full width such as this page, or the default with a right sidebar (as comments page). The options are found under ‘Page Attributes’ either when you add a new page or edit a page.
You can choose from eight standard headers or upload your own custom header. Note the size of the custom header is set at 940 x 198 pixels. I used Adobe PhotoShop Elements 8.0 to set up the custom header for this site.
You can change the background color (this one is light blue) or upload a custom background. There is a selection color key or you can identify the color by Hex code. Click a sample color chart in Hex codes.
You are ready to consider selecting another theme under Theme Selection.