code: public ImageDescriptor getTypeImageDescriptor(
  			SarlElementType type,
  			boolean isInner) {
  		return getTypeImageDescriptor(type, isInner, false, 0, USE_LIGHT_ICONS);
  	}
docs: Replies the image descriptor for the given element.
  
  @param type the type of the SARL element, or <code>null</code> if unknown.
  @param isInner indicates if the element is inner.
  @return the image descriptor.