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diff --git a/js/vendor/color.js b/js/vendor/color.js
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+// http://www.easyrgb.com/index.php?X=MATH&H=01#text1
+
+function rgb(x,y,z){
+ r=x; g=y; b=z
+}
+function rgbref(rgb){
+ r=rgb[0]; g=rgb[1]; b=rgb[2];
+}
+function black(){ rgb(0,0,0) }
+function white(){ rgb(255,255,255) }
+function red(){ rgb(255,0,0) }
+function gray(n){ n<1&&(n*=255);rgb(n,n,n) }
+
+function rgb2xyz(rgb){
+ var var_R = ( rgb[0] / 255 ) //R from 0 to 255
+ var var_G = ( rgb[1] / 255 ) //G from 0 to 255
+ var var_B = ( rgb[2] / 255 ) //B from 0 to 255
+
+ if ( var_R > 0.04045 ) var_R = Math.pow( ( var_R + 0.055 ) / 1.055, 2.4)
+ else var_R = var_R / 12.92
+ if ( var_G > 0.04045 ) var_G = Math.pow( ( var_G + 0.055 ) / 1.055, 2.4)
+ else var_G = var_G / 12.92
+ if ( var_B > 0.04045 ) var_B = Math.pow( ( var_B + 0.055 ) / 1.055, 2.4)
+ else var_B = var_B / 12.92
+
+ var_R = var_R * 100
+ var_G = var_G * 100
+ var_B = var_B * 100
+
+ //Observer. = 2°, Illuminant = D65
+ var x = var_R * 0.4124 + var_G * 0.3576 + var_B * 0.1805
+ var y = var_R * 0.2126 + var_G * 0.7152 + var_B * 0.0722
+ var z = var_R * 0.0193 + var_G * 0.1192 + var_B * 0.9505
+ return [x,y,z];
+}
+function xyz2rgb(xyz){
+ var var_X = xyz[0] / 100 //X from 0 to 95.047 (Observer = 2°, Illuminant = D65)
+ var var_Y = xyz[1] / 100 //Y from 0 to 100.000
+ var var_Z = xyz[2] / 100 //Z from 0 to 108.883
+
+ var_R = var_X * 3.2406 + var_Y * -1.5372 + var_Z * -0.4986
+ var_G = var_X * -0.9689 + var_Y * 1.8758 + var_Z * 0.0415
+ var_B = var_X * 0.0557 + var_Y * -0.2040 + var_Z * 1.0570
+
+ if ( var_R > 0.0031308 ) var_R = 1.055 * Math.pow( var_R, 1 / 2.4 ) - 0.055
+ else var_R = 12.92 * var_R
+ if ( var_G > 0.0031308 ) var_G = 1.055 * Math.pow( var_G, 1 / 2.4 ) - 0.055
+ else var_G = 12.92 * var_G
+ if ( var_B > 0.0031308 ) var_B = 1.055 * Math.pow( var_B, 1 / 2.4 ) - 0.055
+ else var_B = 12.92 * var_B
+
+ var r = clamp(var_R * 255, 0, 255)
+ var g = clamp(var_G * 255, 0, 255)
+ var b = clamp(var_B * 255, 0, 255)
+ return [r,g,b]
+}
+
+function xyz2hunterlab (XYZ) {
+ var X = XYZ[0]
+ var Y = XYZ[1] || 1e-6 // otherwise divide-by-zero error when converting rgb(0,0,0)
+ var Z = XYZ[2]
+ var L = 10 * sqrt( Y )
+ var a = 17.5 * ( ( ( 1.02 * X ) - Y ) / sqrt( Y ) )
+ var b = 7 * ( ( Y - ( 0.847 * Z ) ) / sqrt( Y ) )
+ return [L,a,b]
+}
+
+function hunterlab2xyz (Lab) {
+ var L = Lab[0]
+ var a = Lab[1]
+ var b = Lab[2]
+ var_Y = L / 10
+ var_X = a / 17.5 * L / 10
+ var_Z = b / 7 * L / 10
+
+ Y = Math.pow(var_Y, 2)
+ X = ( var_X + Y ) / 1.02
+ Z = -( var_Z - Y ) / 0.847
+ return [X,Y,Z]
+}
+// Daylight Illuminant (D65)
+var REF_X = 95.047
+var REF_Y = 100.000
+var REF_Z = 108.883
+
+function xyz2cielab (xyz) {
+ var var_X = xyz[0] / ref_X //ref_X = 95.047 Observer= 2°, Illuminant= D65
+ var var_Y = xyz[1] / ref_Y //ref_Y = 100.000
+ var var_Z = xyz[2] / ref_Z //ref_Z = 108.883
+
+ if ( var_X > 0.008856 ) var_X = Math.pow( var_X, 1/3 )
+ else var_X = ( 7.787 * var_X ) + ( 16 / 116 )
+ if ( var_Y > 0.008856 ) var_Y = Math.pow( var_Y, 1/3 )
+ else var_Y = ( 7.787 * var_Y ) + ( 16 / 116 )
+ if ( var_Z > 0.008856 ) var_Z = Math.pow(var_Z, 1/3 )
+ else var_Z = ( 7.787 * var_Z ) + ( 16 / 116 )
+
+ var L = ( 116 * var_Y ) - 16
+ var a = 500 * ( var_X - var_Y )
+ var b = 200 * ( var_Y - var_Z )
+
+ return [L,a,b]
+}
+
+function cielab2xyz (lab){
+ var var_Y = ( lab[0] + 16 ) / 116
+ var var_X = lab[1] / 500 + var_Y
+ var var_Z = var_Y - lab[2] / 200
+
+ if ( Math.pow(var_Y, 3) > 0.008856 ) var_Y = Math.pow(var_Y, 3)
+ else var_Y = ( var_Y - 16 / 116 ) / 7.787
+ if ( Math.pow(var_X, 3) > 0.008856 ) var_X = Math.pow(var_X, 3)
+ else var_X = ( var_X - 16 / 116 ) / 7.787
+ if ( Math.pow(var_Z, 3) > 0.008856 ) var_Z = Math.pow(var_Z, 3)
+ else var_Z = ( var_Z - 16 / 116 ) / 7.787
+
+ var x = REF_X * var_X //ref_X = 95.047 Observer= 2°, Illuminant= D65
+ var y = REF_Y * var_Y //ref_Y = 100.000
+ var z = REF_Z * var_Z //ref_Z = 108.883
+
+ return [x,y,z]
+}
+
+function rgb2hsl (RGB){
+ var R = RGB[0]
+ var G = RGB[1]
+ var B = RGB[2]
+ var var_R = ( R / 255 ) //RGB from 0 to 255
+ var var_G = ( G / 255 )
+ var var_B = ( B / 255 )
+
+ var var_Min = Math.min( var_R, var_G, var_B ) //Min. value of RGB
+ var var_Max = Math.max( var_R, var_G, var_B ) //Max. value of RGB
+ var del_Max = var_Max - var_Min //Delta RGB value
+
+ var H,S;
+ var L = ( var_Max + var_Min ) / 2
+
+ if ( del_Max == 0 ) //This is a gray, no chroma...
+ {
+ H = 0 //HSL results from 0 to 1
+ S = 0
+ }
+ else //Chromatic data...
+ {
+ if ( L < 0.5 ) S = del_Max / ( var_Max + var_Min )
+ else S = del_Max / ( 2 - var_Max - var_Min )
+
+ var del_R = ( ( ( var_Max - var_R ) / 6 ) + ( del_Max / 2 ) ) / del_Max
+ var del_G = ( ( ( var_Max - var_G ) / 6 ) + ( del_Max / 2 ) ) / del_Max
+ var del_B = ( ( ( var_Max - var_B ) / 6 ) + ( del_Max / 2 ) ) / del_Max
+
+ if ( var_R == var_Max ) H = del_B - del_G
+ else if ( var_G == var_Max ) H = ( 1 / 3 ) + del_R - del_B
+ else if ( var_B == var_Max ) H = ( 2 / 3 ) + del_G - del_R
+
+ if ( H < 0 ) H += 1
+ if ( H > 1 ) H -= 1
+ }
+ return [H,S,L]
+}
+function hsl2rgb (H, S, L) {
+ var R,G,B;
+ var var_1, var_2;
+ if ( S == 0 ) { //HSL from 0 to 1
+ R = L * 255 //RGB results from 0 to 255
+ G = L * 255
+ B = L * 255
+ }
+ else {
+ if ( L < 0.5 ) var_2 = L * ( 1 + S )
+ else var_2 = ( L + S ) - ( S * L )
+
+ var_1 = 2 * L - var_2
+
+ R = 255 * hue2rgb( var_1, var_2, H + ( 1 / 3 ) )
+ G = 255 * hue2rgb( var_1, var_2, H )
+ B = 255 * hue2rgb( var_1, var_2, H - ( 1 / 3 ) )
+ }
+ return [R,G,B]
+}
+function hue2rgb( v1, v2, vH ) {
+ if ( vH < 0 ) vH += 1
+ if ( vH > 1 ) vH -= 1
+ if ( ( 6 * vH ) < 1 ) return ( v1 + ( v2 - v1 ) * 6 * vH )
+ if ( ( 2 * vH ) < 1 ) return ( v2 )
+ if ( ( 3 * vH ) < 2 ) return ( v1 + ( v2 - v1 ) * ( ( 2 / 3 ) - vH ) * 6 )
+ return ( v1 )
+}
+
+function rgb2cmy (R,G,B){
+ if (R.length) {
+ B = R[2]
+ G = R[1]
+ R = R[0]
+ }
+ var C = 1 - ( R / 255 )
+ var M = 1 - ( G / 255 )
+ var Y = 1 - ( B / 255 )
+ return [C,M,Y]
+}
+function cmy2rgb (C,M,Y){
+ if (C.length) {
+ Y = C[2]
+ M = C[1]
+ C = C[0]
+ }
+ var R = ( 1 - C ) * 255
+ var G = ( 1 - M ) * 255
+ var B = ( 1 - Y ) * 255
+ return [R,G,B]
+}
+function cmy2cmyk (C,M,Y) {
+ if (C.length) {
+ Y = C[2]
+ M = C[1]
+ C = C[0]
+ }
+
+ var var_K = 1
+
+ if ( C < var_K ) var_K = C
+ if ( M < var_K ) var_K = M
+ if ( Y < var_K ) var_K = Y
+ if ( var_K == 1 ) { //Black
+ C = 0
+ M = 0
+ Y = 0
+ }
+ else {
+ C = ( C - var_K ) / ( 1 - var_K )
+ M = ( M - var_K ) / ( 1 - var_K )
+ Y = ( Y - var_K ) / ( 1 - var_K )
+ }
+ var K = var_K
+ return [C,M,Y,K]
+}
+function cmyk2cmy (C,M,Y,K) {
+ if (C.length) {
+ K = C[3]
+ Y = C[2]
+ M = C[1]
+ C = C[0]
+ }
+ var C = ( C * ( 1 - K ) + K )
+ var M = ( M * ( 1 - K ) + K )
+ var Y = ( Y * ( 1 - K ) + K )
+ return [C,M,Y]
+}
+
+
generated by cgit v1.2.3-70-g09d2 (git 2.51.0) at 2025-12-10 15:54:03 +0000