A panel is a container object that enables an application designer to group fields together on a form. Unlike trim boxes, which provide only visual grouping for fields, panels provide visual grouping and true container functionality.
(Click the image to expand it.)
To style a panel, you can use many field properties: background color, including gradient fill; background image, including tiling and filling; opacity (transparent or opaque); border thickness; border color; and rounded corners (browsers only).
For additional information about panels, see the following sections: