[css-color-hdr] expunge more 140

Author: svgeesus

css-color-hdr/Overview.bs

@@ -194,7 +194,7 @@ Predefined colorspaces for HDR: {#predefined-HDR}
 
 	<pre class="lang-javascript">
 		var Er;			// the red, green or blue component, [0, 1] for SDR, [0, 70ish] for HDR
-		var Yw = 140;	// the absolute luminance of diffuse white, cd/m²
+		var Yw = 203;	// the absolute luminance of diffuse white, cd/m²
 		var x = Er * Yw / 10000; 	// absolute luminance of peak white is 10,000 cd/m².
 		const n = 2610 / (2 ** 14);
 		const m = 2523 / (2 ** 5);
@@ -218,7 +218,7 @@ Predefined colorspaces for HDR: {#predefined-HDR}
 		const c2 = 2413 / (2 ** 7);
 		const c3 = 2392 / (2 ** 7);
 		var x = (((Math.max(((xPQ ** minv) - c1), 0) / (c2 - (c3 * (xPQ ** minv)))) ** ninv);
-		var Yw = 140;			// the absolute luminance of diffuse white, cd/m²
+		var Yw = 203;			// the absolute luminance of diffuse white, cd/m²
 		var Ea = x * 10000; 	// absolute luminance, [0, 10,000].
 		var Er = x * 10000 / Yw; 	// luminance relative to diffuse white, [0, 70 or so].
 	</pre>