if ( cd != null && cd.isSetTransparency( ) ) { setAlpha( gc, cd.getTransparency( ) ); } else { setAlpha( gc, 255 ); }
gc.setAlpha( value );
	static void setAlpha( GC gc, ColorDefinition cd )	{		if ( R31_AVAILABLE )		{			if ( cd != null && cd.isSetTransparency( ) )			{				setAlpha( gc, cd.getTransparency( ) );			}			else			{				setAlpha( gc, 255 );			}		}	}