ColorDefinition cdf = (ColorDefinition) EcoreUtil.copy( _ifBackground );
ColorDefinition cdf = ColorDefinitionImpl.copyInstance( (ColorDefinition) _ifBackground );
	public void setBrightness( double value )	{		dBrightness = value;		if ( _ifBackground instanceof ColorDefinition )		{			ColorDefinition cdf = (ColorDefinition) EcoreUtil.copy( _ifBackground );			cdf.set( (int) ( cdf.getRed( ) * dBrightness ),					(int) ( cdf.getGreen( ) * dBrightness ),					(int) ( cdf.getBlue( ) * dBrightness ) );			runtimeBackground = cdf;		}	}