feature: upgrade oklab and lms matrix

See:
- color-js/color.js#356
- https://github.com/LeaVerou/color.js/pull/352/files#r1398416103
- color-js/color.js#357 (comment)

src/colorspace/oklab.ts

@@ -6,7 +6,7 @@ import { _LMSg, _LMSgColorspace } from "./oklab/_lmsg";
 import { ToXYZColorspaceVisitor } from "./xyz";
 import { ToRGBColorspaceVisitor } from "./rgb";
 
-import { LMS_Oklab } from "../constants";
+import { LMSg_OkLab } from "../constants";
 
 export class ToOkLabColorspaceVisitor extends ColorspaceVisitor<InstanceType<typeof Color.OkLab>> {
   public visitRGBColor(color: InstanceType<typeof Color.RGB>) {
@@ -18,7 +18,7 @@ export class ToOkLabColorspaceVisitor extends ColorspaceVisitor<InstanceType<typ
     return this.visitRGBColor(rgb);
   }
   private visiteLMSgColor(color: _LMSg) {
-    const lab = matMul(LMS_Oklab, [color.l, color.m, color.s]);
+    const lab = matMul(LMSg_OkLab, [color.l, color.m, color.s]);
     const oklab = new Color.OkLab(lab[0], lab[1], lab[2]);
     return this.visitOkLabColor(oklab);
   }

src/constants.ts

@@ -1,4 +1,4 @@
-export const LMS_Oklab = [
+export const LMSg_OkLab = [
   [0.210454268309314, 0.7936177747023054, -0.0040720430116193],
   [1.9779985324311684, -2.4285922420485799, 0.450593709617411],
   [0.0259040424655478, 0.7827717124575296, -0.8086757549230774],

src/gamut/rgb/oklab.ts

@@ -154,9 +154,9 @@ export abstract class OkLabInterpolateGamutMapping extends OkLabGamutMapping {
     // this gives an error less than 10e6, except for some blue hues where the dS/dh is close to infinite
     // this should be sufficient for most applications, otherwise do two/three steps
 
-    let k_l = +0.3963377774 * a + 0.2158037573 * b;
-    let k_m = -0.1055613458 * a - 0.0638541728 * b;
-    let k_s = -0.0894841775 * a - 1.291485548 * b;
+    let k_l = +0.3963377773761749 * a + 0.2158037573099136 * b;
+    let k_m = -0.1055613458156586 * a - 0.0638541728258133 * b;
+    let k_s = -0.0894841775298119 * a - 1.2914855480194092 * b;
 
     const halleyStep = () => {
       let l_ = 1 + maxSaturation * k_l;
@@ -238,9 +238,9 @@ export abstract class OkLabInterpolateGamutMapping extends OkLabGamutMapping {
         let dL = L1 - L0;
         let dC = C1 - 0;
 
-        let k_l = +0.3963377774 * a + 0.2158037573 * b;
-        let k_m = -0.1055613458 * a - 0.0638541728 * b;
-        let k_s = -0.0894841775 * a - 1.291485548 * b;
+        let k_l = +0.3963377773761749 * a + 0.2158037573099136 * b;
+        let k_m = -0.1055613458156586 * a - 0.0638541728258133 * b;
+        let k_s = -0.0894841775298119 * a - 1.2914855480194092 * b;
 
         let l_dt = dL + dC * k_l;
         let m_dt = dL + dC * k_m;