Classes
 ClassDescription
 ExtendedTitleWindowSkinThe default skin class for a Spark TitleWindow container.
 FieldSetSkin 
 MaximizeButtonSkinThe default skin class for the close button of the Spark TitleWindow component.
 PopupButtonTitleWindowSkinThe default skin class for a Spark TitleWindow container.
 RestoreButtonSkinThe default skin class for the close button of the Spark TitleWindow component.