String jvxlExtraLine(int n) {
		return (-n) + " " + edgeFractionBase + " " + edgeFractionRange + " " + colorFractionBase + " "
				+ colorFractionRange + " Jmol voxel format version 0.9f\n";
		// 0.9e adds color contours for planes and min/max range, contour settings
	}