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
* style of this element or an ancestor element; it is not considered set if
	 * it is inherited from a shared style.</li>
	 * </ul>
	 * 
	 * @param module
	 *            the module
	 * @param prop
	 *            definition of the property
	 * @return the value of the property according to the rules explained above
	 */
	public Object getFactoryProperty( Module module, ElementPropertyDefn prop )
	{
		
		
		assert !prop.isStyleProperty( );
		return getProperty( module, prop );
	}
	/**
	 * Creates the Factory data structures for specialized property access. This
	 * method uses specialized property resolution rules:
	 * <p>
	 * <ul>
	 * <li>A property value is either a style property or a non-style property.
	 * </li>
	 * <li>A non-style property is set if this element, or any of its ancestor
	 * elements, provide a value. It is also considered set if the system
	 * provides a default value.</li>
	 * <li>A property value is considered set only if it is set in the private
	 * style of this element or an ancestor element; it is not considered set if
	 * it is inherited from a shared style.</li>