[css-color-4] specify whites as ASTM 308 XYZ values

Author: svgeesus

css-color-4/matrixmaker.html

@@ -65,20 +65,20 @@
 		// const yblue=0.060 ;
 
 
-		// D65
-		const xwhite=0.3127 ;
-		const ywhite=0.3290 ;
+		// D65 from ASTM E308-01
+		const XWhite = 0.95047;
+		const YWhite = 1.00000;
+		const ZWhite = 1.08883;
+
+		// D50 from ASTM E308-01
+		// const XWhite = 0.96422;
+		// const YWhite = 1.00000;
+		// const ZWhite = 0.82521;
 
-		// D50
-		// const xwhite=0.3457  ;
-		// const ywhite=0.3585 ;
 
 
 		// Relative XYZ values. Copy-paste-o-rama
 		// method from http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
-		var XWhite=xwhite/ywhite;
-		var YWhite=1;
-		var ZWhite=(1 - xwhite - ywhite)/ywhite;
 
 		var XRed=xred/yred;
 		var YRed=1;