TabPanel consists of an unlimited number of tabs arranged horizontally in a single row above the main panel. Scroll buttons are shown automatically if required, allowing hidden tabs to be scrolled into view. Selecting a new tab displays an unlimited number of text-buttons on the main panel. Each button links to a separate URL. TabPanel includes options to allow a full choice of colors (including highlight and shadow colors for the tabs' 3D appearance), and different fonts for tabs and buttons.