public WTab addTab(final WComponent content, final WDecoratedLabel label, final TabMode mode) {
		return addTab(new WTab(content, label, mode, (char) 0));
	}
public WTab addTab ( final WComponent content , final WDecoratedLabel label , final TabMode mode ) { return addTab ( new WTab ( content , label , mode , ( char ) 0 ) ) ; }
Adds a tab to the tab set.

@param content the tab set content.
@param label the tab's label, which can contain rich content (images or other components).
@param mode the tab mode.
@return the tab which was added to the tab set.