CSV list of additional include files (either .js or .css) that should be included when this component is used on a page.
By default, the file extension (.js or .css) is used to determine whether an item in the list is a script include or a style include. You can override this behavior by adding the terms "script:" or "style:" to the beginning of the file name or names. This prefix is not used as part of the include filename.
If defined, roll over tooltip to display when button is enabled property icon as
URI of image to display under normal conditions. property iconDisabled as
URI of image to display when option is grayed-out. property onclick as
onclick event handler: This event is fired when the mouse is clicked on the buttonBarItem.
Subclasses implement this in order to render the static HTML contents of a component.
Set the value of a named property.