Bug 122687 Libraries dont appear to allow background colors on tables to be used
If I create a table and set the background color to blue in my library and then drag the table from the library to the report the background color does not go with it.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/DesignElement.java
* a pointer to the target structure itself.
	 * 
	 * @param oldRef
	 *            the old reference, if any
	 * @param newRef
	 *            the new reference, if any
	 * @param prop
	 *            definition of the property
	 */
	protected void updateReference( StructRefValue oldRef,
			StructRefValue newRef, ElementPropertyDefn prop )
	{
		ReferencableStructure target;
		
		
		if ( oldRef != null )
		{
			target = oldRef.getTargetStructure( );
			if ( target != null )
				target.dropClient( this );
		}
		
		
		
		if ( newRef != null )
		{
			target = newRef.getTargetStructure( );
			if ( target != null )
				target.addClient( this, prop.getName( ) );
		}