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
*            definition of the property to get.
	 * @return property value, or null if no value is set.
	 */
	protected Object getPropertyFromParent( Module module,
			ElementPropertyDefn prop )
	{
		Object value = null;
		DesignElement e = getExtendsElement( );
		while ( e != null )
		{
			Module currentRoot = e.getRoot( );
			assert currentRoot != null;
			
			value = e.getPropertyFromSelf( currentRoot, prop );
			if ( value != null )
				return value;
			e = e.getExtendsElement( );
		}
		return value;
	}
	/**
	 * Returns the property value from this element's parent, or any ancestor.
	 * The value is only from local properties, or local style of its ancestor.
	 * 
	 * @param module
	 *            module
	 * @param prop
	 *            definition of the property to get.
	 * @return property value, or null if no value is set.
	 */