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.
Subclasses implement this in order to render the static HTML contents of a component.
Set the value of a named property.