update

4 files changed, 361 insertions, 337 deletions

diff --git a/node_modules/color-convert/conversions.js b/node_modules/color-convert/conversions.js
index 2657f265..32172007 100644
--- a/node_modules/color-convert/conversions.js
+++ b/node_modules/color-convert/conversions.js
@@ -1,17 +1,18 @@
 /* MIT license */
-/* eslint-disable no-mixed-operators */
-const cssKeywords = require('color-name');
+var cssKeywords = require('color-name');
 
 // NOTE: conversions should only return primitive values (i.e. arrays, or
 //       values that give correct `typeof` results).
 //       do not use box values types (i.e. Number(), String(), etc.)
 
-const reverseKeywords = {};
-for (const key of Object.keys(cssKeywords)) {
-	reverseKeywords[cssKeywords[key]] = key;
+var reverseKeywords = {};
+for (var key in cssKeywords) {
+	if (cssKeywords.hasOwnProperty(key)) {
+		reverseKeywords[cssKeywords[key]] = key;
+	}
 }
 
-const convert = {
+var convert = module.exports = {
 	rgb: {channels: 3, labels: 'rgb'},
 	hsl: {channels: 3, labels: 'hsl'},
 	hsv: {channels: 3, labels: 'hsv'},
@@ -29,38 +30,40 @@ const convert = {
 	gray: {channels: 1, labels: ['gray']}
 };
 
-module.exports = convert;
+// hide .channels and .labels properties
+for (var model in convert) {
+	if (convert.hasOwnProperty(model)) {
+		if (!('channels' in convert[model])) {
+			throw new Error('missing channels property: ' + model);
+		}
 
-// Hide .channels and .labels properties
-for (const model of Object.keys(convert)) {
-	if (!('channels' in convert[model])) {
-		throw new Error('missing channels property: ' + model);
-	}
+		if (!('labels' in convert[model])) {
+			throw new Error('missing channel labels property: ' + model);
+		}
 
-	if (!('labels' in convert[model])) {
-		throw new Error('missing channel labels property: ' + model);
-	}
+		if (convert[model].labels.length !== convert[model].channels) {
+			throw new Error('channel and label counts mismatch: ' + model);
+		}
 
-	if (convert[model].labels.length !== convert[model].channels) {
-		throw new Error('channel and label counts mismatch: ' + model);
+		var channels = convert[model].channels;
+		var labels = convert[model].labels;
+		delete convert[model].channels;
+		delete convert[model].labels;
+		Object.defineProperty(convert[model], 'channels', {value: channels});
+		Object.defineProperty(convert[model], 'labels', {value: labels});
 	}
-
-	const {channels, labels} = convert[model];
-	delete convert[model].channels;
-	delete convert[model].labels;
-	Object.defineProperty(convert[model], 'channels', {value: channels});
-	Object.defineProperty(convert[model], 'labels', {value: labels});
 }
 
 convert.rgb.hsl = function (rgb) {
-	const r = rgb[0] / 255;
-	const g = rgb[1] / 255;
-	const b = rgb[2] / 255;
-	const min = Math.min(r, g, b);
-	const max = Math.max(r, g, b);
-	const delta = max - min;
-	let h;
-	let s;
+	var r = rgb[0] / 255;
+	var g = rgb[1] / 255;
+	var b = rgb[2] / 255;
+	var min = Math.min(r, g, b);
+	var max = Math.max(r, g, b);
+	var delta = max - min;
+	var h;
+	var s;
+	var l;
 
 	if (max === min) {
 		h = 0;
@@ -78,7 +81,7 @@ convert.rgb.hsl = function (rgb) {
 		h += 360;
 	}
 
-	const l = (min + max) / 2;
+	l = (min + max) / 2;
 
 	if (max === min) {
 		s = 0;
@@ -92,24 +95,23 @@ convert.rgb.hsl = function (rgb) {
 };
 
 convert.rgb.hsv = function (rgb) {
-	let rdif;
-	let gdif;
-	let bdif;
-	let h;
-	let s;
-
-	const r = rgb[0] / 255;
-	const g = rgb[1] / 255;
-	const b = rgb[2] / 255;
-	const v = Math.max(r, g, b);
-	const diff = v - Math.min(r, g, b);
-	const diffc = function (c) {
+	var rdif;
+	var gdif;
+	var bdif;
+	var h;
+	var s;
+
+	var r = rgb[0] / 255;
+	var g = rgb[1] / 255;
+	var b = rgb[2] / 255;
+	var v = Math.max(r, g, b);
+	var diff = v - Math.min(r, g, b);
+	var diffc = function (c) {
 		return (v - c) / 6 / diff + 1 / 2;
 	};
 
 	if (diff === 0) {
-		h = 0;
-		s = 0;
+		h = s = 0;
 	} else {
 		s = diff / v;
 		rdif = diffc(r);
@@ -123,7 +125,6 @@ convert.rgb.hsv = function (rgb) {
 		} else if (b === v) {
 			h = (2 / 3) + gdif - rdif;
 		}
-
 		if (h < 0) {
 			h += 1;
 		} else if (h > 1) {
@@ -139,11 +140,11 @@ convert.rgb.hsv = function (rgb) {
 };
 
 convert.rgb.hwb = function (rgb) {
-	const r = rgb[0];
-	const g = rgb[1];
-	let b = rgb[2];
-	const h = convert.rgb.hsl(rgb)[0];
-	const w = 1 / 255 * Math.min(r, Math.min(g, b));
+	var r = rgb[0];
+	var g = rgb[1];
+	var b = rgb[2];
+	var h = convert.rgb.hsl(rgb)[0];
+	var w = 1 / 255 * Math.min(r, Math.min(g, b));
 
 	b = 1 - 1 / 255 * Math.max(r, Math.max(g, b));
 
@@ -151,48 +152,54 @@ convert.rgb.hwb = function (rgb) {
 };
 
 convert.rgb.cmyk = function (rgb) {
-	const r = rgb[0] / 255;
-	const g = rgb[1] / 255;
-	const b = rgb[2] / 255;
-
-	const k = Math.min(1 - r, 1 - g, 1 - b);
-	const c = (1 - r - k) / (1 - k) || 0;
-	const m = (1 - g - k) / (1 - k) || 0;
-	const y = (1 - b - k) / (1 - k) || 0;
+	var r = rgb[0] / 255;
+	var g = rgb[1] / 255;
+	var b = rgb[2] / 255;
+	var c;
+	var m;
+	var y;
+	var k;
+
+	k = Math.min(1 - r, 1 - g, 1 - b);
+	c = (1 - r - k) / (1 - k) || 0;
+	m = (1 - g - k) / (1 - k) || 0;
+	y = (1 - b - k) / (1 - k) || 0;
 
 	return [c * 100, m * 100, y * 100, k * 100];
 };
 
+/**
+ * See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance
+ * */
 function comparativeDistance(x, y) {
-	/*
-		See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance
-	*/
 	return (
-		((x[0] - y[0]) ** 2) +
-		((x[1] - y[1]) ** 2) +
-		((x[2] - y[2]) ** 2)
+		Math.pow(x[0] - y[0], 2) +
+		Math.pow(x[1] - y[1], 2) +
+		Math.pow(x[2] - y[2], 2)
 	);
 }
 
 convert.rgb.keyword = function (rgb) {
-	const reversed = reverseKeywords[rgb];
+	var reversed = reverseKeywords[rgb];
 	if (reversed) {
 		return reversed;
 	}
 
-	let currentClosestDistance = Infinity;
-	let currentClosestKeyword;
+	var currentClosestDistance = Infinity;
+	var currentClosestKeyword;
 
-	for (const keyword of Object.keys(cssKeywords)) {
-		const value = cssKeywords[keyword];
+	for (var keyword in cssKeywords) {
+		if (cssKeywords.hasOwnProperty(keyword)) {
+			var value = cssKeywords[keyword];
 
-		// Compute comparative distance
-		const distance = comparativeDistance(rgb, value);
+			// Compute comparative distance
+			var distance = comparativeDistance(rgb, value);
 
-		// Check if its less, if so set as closest
-		if (distance < currentClosestDistance) {
-			currentClosestDistance = distance;
-			currentClosestKeyword = keyword;
+			// Check if its less, if so set as closest
+			if (distance < currentClosestDistance) {
+				currentClosestDistance = distance;
+				currentClosestKeyword = keyword;
+			}
 		}
 	}
 
@@ -204,50 +211,55 @@ convert.keyword.rgb = function (keyword) {
 };
 
 convert.rgb.xyz = function (rgb) {
-	let r = rgb[0] / 255;
-	let g = rgb[1] / 255;
-	let b = rgb[2] / 255;
+	var r = rgb[0] / 255;
+	var g = rgb[1] / 255;
+	var b = rgb[2] / 255;
 
-	// Assume sRGB
-	r = r > 0.04045 ? (((r + 0.055) / 1.055) ** 2.4) : (r / 12.92);
-	g = g > 0.04045 ? (((g + 0.055) / 1.055) ** 2.4) : (g / 12.92);
-	b = b > 0.04045 ? (((b + 0.055) / 1.055) ** 2.4) : (b / 12.92);
+	// assume sRGB
+	r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);
+	g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);
+	b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);
 
-	const x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
-	const y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
-	const z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);
+	var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
+	var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
+	var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);
 
 	return [x * 100, y * 100, z * 100];
 };
 
 convert.rgb.lab = function (rgb) {
-	const xyz = convert.rgb.xyz(rgb);
-	let x = xyz[0];
-	let y = xyz[1];
-	let z = xyz[2];
+	var xyz = convert.rgb.xyz(rgb);
+	var x = xyz[0];
+	var y = xyz[1];
+	var z = xyz[2];
+	var l;
+	var a;
+	var b;
 
 	x /= 95.047;
 	y /= 100;
 	z /= 108.883;
 
-	x = x > 0.008856 ? (x ** (1 / 3)) : (7.787 * x) + (16 / 116);
-	y = y > 0.008856 ? (y ** (1 / 3)) : (7.787 * y) + (16 / 116);
-	z = z > 0.008856 ? (z ** (1 / 3)) : (7.787 * z) + (16 / 116);
+	x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
+	y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
+	z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);
 
-	const l = (116 * y) - 16;
-	const a = 500 * (x - y);
-	const b = 200 * (y - z);
+	l = (116 * y) - 16;
+	a = 500 * (x - y);
+	b = 200 * (y - z);
 
 	return [l, a, b];
 };
 
 convert.hsl.rgb = function (hsl) {
-	const h = hsl[0] / 360;
-	const s = hsl[1] / 100;
-	const l = hsl[2] / 100;
-	let t2;
-	let t3;
-	let val;
+	var h = hsl[0] / 360;
+	var s = hsl[1] / 100;
+	var l = hsl[2] / 100;
+	var t1;
+	var t2;
+	var t3;
+	var rgb;
+	var val;
 
 	if (s === 0) {
 		val = l * 255;
@@ -260,15 +272,14 @@ convert.hsl.rgb = function (hsl) {
 		t2 = l + s - l * s;
 	}
 
-	const t1 = 2 * l - t2;
+	t1 = 2 * l - t2;
 
-	const rgb = [0, 0, 0];
-	for (let i = 0; i < 3; i++) {
+	rgb = [0, 0, 0];
+	for (var i = 0; i < 3; i++) {
 		t3 = h + 1 / 3 * -(i - 1);
 		if (t3 < 0) {
 			t3++;
 		}
-
 		if (t3 > 1) {
 			t3--;
 		}
@@ -290,31 +301,33 @@ convert.hsl.rgb = function (hsl) {
 };
 
 convert.hsl.hsv = function (hsl) {
-	const h = hsl[0];
-	let s = hsl[1] / 100;
-	let l = hsl[2] / 100;
-	let smin = s;
-	const lmin = Math.max(l, 0.01);
+	var h = hsl[0];
+	var s = hsl[1] / 100;
+	var l = hsl[2] / 100;
+	var smin = s;
+	var lmin = Math.max(l, 0.01);
+	var sv;
+	var v;
 
 	l *= 2;
 	s *= (l <= 1) ? l : 2 - l;
 	smin *= lmin <= 1 ? lmin : 2 - lmin;
-	const v = (l + s) / 2;
-	const sv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s);
+	v = (l + s) / 2;
+	sv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s);
 
 	return [h, sv * 100, v * 100];
 };
 
 convert.hsv.rgb = function (hsv) {
-	const h = hsv[0] / 60;
-	const s = hsv[1] / 100;
-	let v = hsv[2] / 100;
-	const hi = Math.floor(h) % 6;
-
-	const f = h - Math.floor(h);
-	const p = 255 * v * (1 - s);
-	const q = 255 * v * (1 - (s * f));
-	const t = 255 * v * (1 - (s * (1 - f)));
+	var h = hsv[0] / 60;
+	var s = hsv[1] / 100;
+	var v = hsv[2] / 100;
+	var hi = Math.floor(h) % 6;
+
+	var f = h - Math.floor(h);
+	var p = 255 * v * (1 - s);
+	var q = 255 * v * (1 - (s * f));
+	var t = 255 * v * (1 - (s * (1 - f)));
 	v *= 255;
 
 	switch (hi) {
@@ -334,15 +347,16 @@ convert.hsv.rgb = function (hsv) {
 };
 
 convert.hsv.hsl = function (hsv) {
-	const h = hsv[0];
-	const s = hsv[1] / 100;
-	const v = hsv[2] / 100;
-	const vmin = Math.max(v, 0.01);
-	let sl;
-	let l;
+	var h = hsv[0];
+	var s = hsv[1] / 100;
+	var v = hsv[2] / 100;
+	var vmin = Math.max(v, 0.01);
+	var lmin;
+	var sl;
+	var l;
 
 	l = (2 - s) * v;
-	const lmin = (2 - s) * vmin;
+	lmin = (2 - s) * vmin;
 	sl = s * vmin;
 	sl /= (lmin <= 1) ? lmin : 2 - lmin;
 	sl = sl || 0;
@@ -353,83 +367,87 @@ convert.hsv.hsl = function (hsv) {
 
 // http://dev.w3.org/csswg/css-color/#hwb-to-rgb
 convert.hwb.rgb = function (hwb) {
-	const h = hwb[0] / 360;
-	let wh = hwb[1] / 100;
-	let bl = hwb[2] / 100;
-	const ratio = wh + bl;
-	let f;
-
-	// Wh + bl cant be > 1
+	var h = hwb[0] / 360;
+	var wh = hwb[1] / 100;
+	var bl = hwb[2] / 100;
+	var ratio = wh + bl;
+	var i;
+	var v;
+	var f;
+	var n;
+
+	// wh + bl cant be > 1
 	if (ratio > 1) {
 		wh /= ratio;
 		bl /= ratio;
 	}
 
-	const i = Math.floor(6 * h);
-	const v = 1 - bl;
+	i = Math.floor(6 * h);
+	v = 1 - bl;
 	f = 6 * h - i;
 
 	if ((i & 0x01) !== 0) {
 		f = 1 - f;
 	}
 
-	const n = wh + f * (v - wh); // Linear interpolation
+	n = wh + f * (v - wh); // linear interpolation
 
-	let r;
-	let g;
-	let b;
-	/* eslint-disable max-statements-per-line,no-multi-spaces */
+	var r;
+	var g;
+	var b;
 	switch (i) {
 		default:
 		case 6:
-		case 0: r = v;  g = n;  b = wh; break;
-		case 1: r = n;  g = v;  b = wh; break;
-		case 2: r = wh; g = v;  b = n; break;
-		case 3: r = wh; g = n;  b = v; break;
-		case 4: r = n;  g = wh; b = v; break;
-		case 5: r = v;  g = wh; b = n; break;
+		case 0: r = v; g = n; b = wh; break;
+		case 1: r = n; g = v; b = wh; break;
+		case 2: r = wh; g = v; b = n; break;
+		case 3: r = wh; g = n; b = v; break;
+		case 4: r = n; g = wh; b = v; break;
+		case 5: r = v; g = wh; b = n; break;
 	}
-	/* eslint-enable max-statements-per-line,no-multi-spaces */
 
 	return [r * 255, g * 255, b * 255];
 };
 
 convert.cmyk.rgb = function (cmyk) {
-	const c = cmyk[0] / 100;
-	const m = cmyk[1] / 100;
-	const y = cmyk[2] / 100;
-	const k = cmyk[3] / 100;
-
-	const r = 1 - Math.min(1, c * (1 - k) + k);
-	const g = 1 - Math.min(1, m * (1 - k) + k);
-	const b = 1 - Math.min(1, y * (1 - k) + k);
+	var c = cmyk[0] / 100;
+	var m = cmyk[1] / 100;
+	var y = cmyk[2] / 100;
+	var k = cmyk[3] / 100;
+	var r;
+	var g;
+	var b;
+
+	r = 1 - Math.min(1, c * (1 - k) + k);
+	g = 1 - Math.min(1, m * (1 - k) + k);
+	b = 1 - Math.min(1, y * (1 - k) + k);
 
 	return [r * 255, g * 255, b * 255];
 };
 
 convert.xyz.rgb = function (xyz) {
-	const x = xyz[0] / 100;
-	const y = xyz[1] / 100;
-	const z = xyz[2] / 100;
-	let r;
-	let g;
-	let b;
+	var x = xyz[0] / 100;
+	var y = xyz[1] / 100;
+	var z = xyz[2] / 100;
+	var r;
+	var g;
+	var b;
 
 	r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);
 	g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);
 	b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);
 
-	// Assume sRGB
+	// assume sRGB
 	r = r > 0.0031308
-		? ((1.055 * (r ** (1.0 / 2.4))) - 0.055)
+		? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)
 		: r * 12.92;
 
 	g = g > 0.0031308
-		? ((1.055 * (g ** (1.0 / 2.4))) - 0.055)
+		? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)
 		: g * 12.92;
 
 	b = b > 0.0031308
-		? ((1.055 * (b ** (1.0 / 2.4))) - 0.055)
+		? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)
 		: b * 12.92;
 
 	r = Math.min(Math.max(0, r), 1);
@@ -440,40 +458,43 @@ convert.xyz.rgb = function (xyz) {
 };
 
 convert.xyz.lab = function (xyz) {
-	let x = xyz[0];
-	let y = xyz[1];
-	let z = xyz[2];
+	var x = xyz[0];
+	var y = xyz[1];
+	var z = xyz[2];
+	var l;
+	var a;
+	var b;
 
 	x /= 95.047;
 	y /= 100;
 	z /= 108.883;
 
-	x = x > 0.008856 ? (x ** (1 / 3)) : (7.787 * x) + (16 / 116);
-	y = y > 0.008856 ? (y ** (1 / 3)) : (7.787 * y) + (16 / 116);
-	z = z > 0.008856 ? (z ** (1 / 3)) : (7.787 * z) + (16 / 116);
+	x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
+	y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
+	z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);
 
-	const l = (116 * y) - 16;
-	const a = 500 * (x - y);
-	const b = 200 * (y - z);
+	l = (116 * y) - 16;
+	a = 500 * (x - y);
+	b = 200 * (y - z);
 
 	return [l, a, b];
 };
 
 convert.lab.xyz = function (lab) {
-	const l = lab[0];
-	const a = lab[1];
-	const b = lab[2];
-	let x;
-	let y;
-	let z;
+	var l = lab[0];
+	var a = lab[1];
+	var b = lab[2];
+	var x;
+	var y;
+	var z;
 
 	y = (l + 16) / 116;
 	x = a / 500 + y;
 	z = y - b / 200;
 
-	const y2 = y ** 3;
-	const x2 = x ** 3;
-	const z2 = z ** 3;
+	var y2 = Math.pow(y, 3);
+	var x2 = Math.pow(x, 3);
+	var z2 = Math.pow(z, 3);
 	y = y2 > 0.008856 ? y2 : (y - 16 / 116) / 7.787;
 	x = x2 > 0.008856 ? x2 : (x - 16 / 116) / 7.787;
 	z = z2 > 0.008856 ? z2 : (z - 16 / 116) / 7.787;
@@ -486,38 +507,45 @@ convert.lab.xyz = function (lab) {
 };
 
 convert.lab.lch = function (lab) {
-	const l = lab[0];
-	const a = lab[1];
-	const b = lab[2];
-	let h;
-
-	const hr = Math.atan2(b, a);
+	var l = lab[0];
+	var a = lab[1];
+	var b = lab[2];
+	var hr;
+	var h;
+	var c;
+
+	hr = Math.atan2(b, a);
 	h = hr * 360 / 2 / Math.PI;
 
 	if (h < 0) {
 		h += 360;
 	}
 
-	const c = Math.sqrt(a * a + b * b);
+	c = Math.sqrt(a * a + b * b);
 
 	return [l, c, h];
 };
 
 convert.lch.lab = function (lch) {
-	const l = lch[0];
-	const c = lch[1];
-	const h = lch[2];
+	var l = lch[0];
+	var c = lch[1];
+	var h = lch[2];
+	var a;
+	var b;
+	var hr;
 
-	const hr = h / 360 * 2 * Math.PI;
-	const a = c * Math.cos(hr);
-	const b = c * Math.sin(hr);
+	hr = h / 360 * 2 * Math.PI;
+	a = c * Math.cos(hr);
+	b = c * Math.sin(hr);
 
 	return [l, a, b];
 };
 
-convert.rgb.ansi16 = function (args, saturation = null) {
-	const [r, g, b] = args;
-	let value = saturation === null ? convert.rgb.hsv(args)[2] : saturation; // Hsv -> ansi16 optimization
+convert.rgb.ansi16 = function (args) {
+	var r = args[0];
+	var g = args[1];
+	var b = args[2];
+	var value = 1 in arguments ? arguments[1] : convert.rgb.hsv(args)[2]; // hsv -> ansi16 optimization
 
 	value = Math.round(value / 50);
 
@@ -525,7 +553,7 @@ convert.rgb.ansi16 = function (args, saturation = null) {
 		return 30;
 	}
 
-	let ansi = 30
+	var ansi = 30
 		+ ((Math.round(b / 255) << 2)
 		| (Math.round(g / 255) << 1)
 		| Math.round(r / 255));
@@ -538,17 +566,17 @@ convert.rgb.ansi16 = function (args, saturation = null) {
 };
 
 convert.hsv.ansi16 = function (args) {
-	// Optimization here; we already know the value and don't need to get
+	// optimization here; we already know the value and don't need to get
 	// it converted for us.
 	return convert.rgb.ansi16(convert.hsv.rgb(args), args[2]);
 };
 
 convert.rgb.ansi256 = function (args) {
-	const r = args[0];
-	const g = args[1];
-	const b = args[2];
+	var r = args[0];
+	var g = args[1];
+	var b = args[2];
 
-	// We use the extended greyscale palette here, with the exception of
+	// we use the extended greyscale palette here, with the exception of
 	// black and white. normal palette only has 4 greyscale shades.
 	if (r === g && g === b) {
 		if (r < 8) {
@@ -562,7 +590,7 @@ convert.rgb.ansi256 = function (args) {
 		return Math.round(((r - 8) / 247) * 24) + 232;
 	}
 
-	const ansi = 16
+	var ansi = 16
 		+ (36 * Math.round(r / 255 * 5))
 		+ (6 * Math.round(g / 255 * 5))
 		+ Math.round(b / 255 * 5);
@@ -571,9 +599,9 @@ convert.rgb.ansi256 = function (args) {
 };
 
 convert.ansi16.rgb = function (args) {
-	let color = args % 10;
+	var color = args % 10;
 
-	// Handle greyscale
+	// handle greyscale
 	if (color === 0 || color === 7) {
 		if (args > 50) {
 			color += 3.5;
@@ -584,71 +612,71 @@ convert.ansi16.rgb = function (args) {
 		return [color, color, color];
 	}
 
-	const mult = (~~(args > 50) + 1) * 0.5;
-	const r = ((color & 1) * mult) * 255;
-	const g = (((color >> 1) & 1) * mult) * 255;
-	const b = (((color >> 2) & 1) * mult) * 255;
+	var mult = (~~(args > 50) + 1) * 0.5;
+	var r = ((color & 1) * mult) * 255;
+	var g = (((color >> 1) & 1) * mult) * 255;
+	var b = (((color >> 2) & 1) * mult) * 255;
 
 	return [r, g, b];
 };
 
 convert.ansi256.rgb = function (args) {
-	// Handle greyscale
+	// handle greyscale
 	if (args >= 232) {
-		const c = (args - 232) * 10 + 8;
+		var c = (args - 232) * 10 + 8;
 		return [c, c, c];
 	}
 
 	args -= 16;
 
-	let rem;
-	const r = Math.floor(args / 36) / 5 * 255;
-	const g = Math.floor((rem = args % 36) / 6) / 5 * 255;
-	const b = (rem % 6) / 5 * 255;
+	var rem;
+	var r = Math.floor(args / 36) / 5 * 255;
+	var g = Math.floor((rem = args % 36) / 6) / 5 * 255;
+	var b = (rem % 6) / 5 * 255;
 
 	return [r, g, b];
 };
 
 convert.rgb.hex = function (args) {
-	const integer = ((Math.round(args[0]) & 0xFF) << 16)
+	var integer = ((Math.round(args[0]) & 0xFF) << 16)
 		+ ((Math.round(args[1]) & 0xFF) << 8)
 		+ (Math.round(args[2]) & 0xFF);
 
-	const string = integer.toString(16).toUpperCase();
+	var string = integer.toString(16).toUpperCase();
 	return '000000'.substring(string.length) + string;
 };
 
 convert.hex.rgb = function (args) {
-	const match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i);
+	var match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i);
 	if (!match) {
 		return [0, 0, 0];
 	}
 
-	let colorString = match[0];
+	var colorString = match[0];
 
 	if (match[0].length === 3) {
-		colorString = colorString.split('').map(char => {
+		colorString = colorString.split('').map(function (char) {
 			return char + char;
 		}).join('');
 	}
 
-	const integer = parseInt(colorString, 16);
-	const r = (integer >> 16) & 0xFF;
-	const g = (integer >> 8) & 0xFF;
-	const b = integer & 0xFF;
+	var integer = parseInt(colorString, 16);
+	var r = (integer >> 16) & 0xFF;
+	var g = (integer >> 8) & 0xFF;
+	var b = integer & 0xFF;
 
 	return [r, g, b];
 };
 
 convert.rgb.hcg = function (rgb) {
-	const r = rgb[0] / 255;
-	const g = rgb[1] / 255;
-	const b = rgb[2] / 255;
-	const max = Math.max(Math.max(r, g), b);
-	const min = Math.min(Math.min(r, g), b);
-	const chroma = (max - min);
-	let grayscale;
-	let hue;
+	var r = rgb[0] / 255;
+	var g = rgb[1] / 255;
+	var b = rgb[2] / 255;
+	var max = Math.max(Math.max(r, g), b);
+	var min = Math.min(Math.min(r, g), b);
+	var chroma = (max - min);
+	var grayscale;
+	var hue;
 
 	if (chroma < 1) {
 		grayscale = min / (1 - chroma);
@@ -665,7 +693,7 @@ convert.rgb.hcg = function (rgb) {
 	if (max === g) {
 		hue = 2 + (b - r) / chroma;
 	} else {
-		hue = 4 + (r - g) / chroma;
+		hue = 4 + (r - g) / chroma + 4;
 	}
 
 	hue /= 6;
@@ -675,12 +703,17 @@ convert.rgb.hcg = function (rgb) {
 };
 
 convert.hsl.hcg = function (hsl) {
-	const s = hsl[1] / 100;
-	const l = hsl[2] / 100;
+	var s = hsl[1] / 100;
+	var l = hsl[2] / 100;
+	var c = 1;
+	var f = 0;
 
-	const c = l < 0.5 ? (2.0 * s * l) : (2.0 * s * (1.0 - l));
+	if (l < 0.5) {
+		c = 2.0 * s * l;
+	} else {
+		c = 2.0 * s * (1.0 - l);
+	}
 
-	let f = 0;
 	if (c < 1.0) {
 		f = (l - 0.5 * c) / (1.0 - c);
 	}
@@ -689,11 +722,11 @@ convert.hsl.hcg = function (hsl) {
 };
 
 convert.hsv.hcg = function (hsv) {
-	const s = hsv[1] / 100;
-	const v = hsv[2] / 100;
+	var s = hsv[1] / 100;
+	var v = hsv[2] / 100;
 
-	const c = s * v;
-	let f = 0;
+	var c = s * v;
+	var f = 0;
 
 	if (c < 1.0) {
 		f = (v - c) / (1 - c);
@@ -703,21 +736,20 @@ convert.hsv.hcg = function (hsv) {
 };
 
 convert.hcg.rgb = function (hcg) {
-	const h = hcg[0] / 360;
-	const c = hcg[1] / 100;
-	const g = hcg[2] / 100;
+	var h = hcg[0] / 360;
+	var c = hcg[1] / 100;
+	var g = hcg[2] / 100;
 
 	if (c === 0.0) {
 		return [g * 255, g * 255, g * 255];
 	}
 
-	const pure = [0, 0, 0];
-	const hi = (h % 1) * 6;
-	const v = hi % 1;
-	const w = 1 - v;
-	let mg = 0;
+	var pure = [0, 0, 0];
+	var hi = (h % 1) * 6;
+	var v = hi % 1;
+	var w = 1 - v;
+	var mg = 0;
 
-	/* eslint-disable max-statements-per-line */
 	switch (Math.floor(hi)) {
 		case 0:
 			pure[0] = 1; pure[1] = v; pure[2] = 0; break;
@@ -732,7 +764,6 @@ convert.hcg.rgb = function (hcg) {
 		default:
 			pure[0] = 1; pure[1] = 0; pure[2] = w;
 	}
-	/* eslint-enable max-statements-per-line */
 
 	mg = (1.0 - c) * g;
 
@@ -744,11 +775,11 @@ convert.hcg.rgb = function (hcg) {
 };
 
 convert.hcg.hsv = function (hcg) {
-	const c = hcg[1] / 100;
-	const g = hcg[2] / 100;
+	var c = hcg[1] / 100;
+	var g = hcg[2] / 100;
 
-	const v = c + g * (1.0 - c);
-	let f = 0;
+	var v = c + g * (1.0 - c);
+	var f = 0;
 
 	if (v > 0.0) {
 		f = c / v;
@@ -758,11 +789,11 @@ convert.hcg.hsv = function (hcg) {
 };
 
 convert.hcg.hsl = function (hcg) {
-	const c = hcg[1] / 100;
-	const g = hcg[2] / 100;
+	var c = hcg[1] / 100;
+	var g = hcg[2] / 100;
 
-	const l = g * (1.0 - c) + 0.5 * c;
-	let s = 0;
+	var l = g * (1.0 - c) + 0.5 * c;
+	var s = 0;
 
 	if (l > 0.0 && l < 0.5) {
 		s = c / (2 * l);
@@ -775,18 +806,18 @@ convert.hcg.hsl = function (hcg) {
 };
 
 convert.hcg.hwb = function (hcg) {
-	const c = hcg[1] / 100;
-	const g = hcg[2] / 100;
-	const v = c + g * (1.0 - c);
+	var c = hcg[1] / 100;
+	var g = hcg[2] / 100;
+	var v = c + g * (1.0 - c);
 	return [hcg[0], (v - c) * 100, (1 - v) * 100];
 };
 
 convert.hwb.hcg = function (hwb) {
-	const w = hwb[1] / 100;
-	const b = hwb[2] / 100;
-	const v = 1 - b;
-	const c = v - w;
-	let g = 0;
+	var w = hwb[1] / 100;
+	var b = hwb[2] / 100;
+	var v = 1 - b;
+	var c = v - w;
+	var g = 0;
 
 	if (c < 1) {
 		g = (v - c) / (1 - c);
@@ -807,12 +838,10 @@ convert.gray.rgb = function (args) {
 	return [args[0] / 100 * 255, args[0] / 100 * 255, args[0] / 100 * 255];
 };
 
-convert.gray.hsl = function (args) {
+convert.gray.hsl = convert.gray.hsv = function (args) {
 	return [0, 0, args[0]];
 };
 
-convert.gray.hsv = convert.gray.hsl;
-
 convert.gray.hwb = function (gray) {
 	return [0, 100, gray[0]];
 };
@@ -826,14 +855,14 @@ convert.gray.lab = function (gray) {
 };
 
 convert.gray.hex = function (gray) {
-	const val = Math.round(gray[0] / 100 * 255) & 0xFF;
-	const integer = (val << 16) + (val << 8) + val;
+	var val = Math.round(gray[0] / 100 * 255) & 0xFF;
+	var integer = (val << 16) + (val << 8) + val;
 
-	const string = integer.toString(16).toUpperCase();
+	var string = integer.toString(16).toUpperCase();
 	return '000000'.substring(string.length) + string;
 };
 
 convert.rgb.gray = function (rgb) {
-	const val = (rgb[0] + rgb[1] + rgb[2]) / 3;
+	var val = (rgb[0] + rgb[1] + rgb[2]) / 3;
 	return [val / 255 * 100];
 };
diff --git a/node_modules/color-convert/index.js b/node_modules/color-convert/index.js
index b648e573..e65b5d77 100644
--- a/node_modules/color-convert/index.js
+++ b/node_modules/color-convert/index.js
@@ -1,25 +1,24 @@
-const conversions = require('./conversions');
-const route = require('./route');
+var conversions = require('./conversions');
+var route = require('./route');
 
-const convert = {};
+var convert = {};
 
-const models = Object.keys(conversions);
+var models = Object.keys(conversions);
 
 function wrapRaw(fn) {
-	const wrappedFn = function (...args) {
-		const arg0 = args[0];
-		if (arg0 === undefined || arg0 === null) {
-			return arg0;
+	var wrappedFn = function (args) {
+		if (args === undefined || args === null) {
+			return args;
 		}
 
-		if (arg0.length > 1) {
-			args = arg0;
+		if (arguments.length > 1) {
+			args = Array.prototype.slice.call(arguments);
 		}
 
 		return fn(args);
 	};
 
-	// Preserve .conversion property if there is one
+	// preserve .conversion property if there is one
 	if ('conversion' in fn) {
 		wrappedFn.conversion = fn.conversion;
 	}
@@ -28,24 +27,22 @@ function wrapRaw(fn) {
 }
 
 function wrapRounded(fn) {
-	const wrappedFn = function (...args) {
-		const arg0 = args[0];
-
-		if (arg0 === undefined || arg0 === null) {
-			return arg0;
+	var wrappedFn = function (args) {
+		if (args === undefined || args === null) {
+			return args;
 		}
 
-		if (arg0.length > 1) {
-			args = arg0;
+		if (arguments.length > 1) {
+			args = Array.prototype.slice.call(arguments);
 		}
 
-		const result = fn(args);
+		var result = fn(args);
 
-		// We're assuming the result is an array here.
+		// we're assuming the result is an array here.
 		// see notice in conversions.js; don't use box types
 		// in conversion functions.
 		if (typeof result === 'object') {
-			for (let len = result.length, i = 0; i < len; i++) {
+			for (var len = result.length, i = 0; i < len; i++) {
 				result[i] = Math.round(result[i]);
 			}
 		}
@@ -53,7 +50,7 @@ function wrapRounded(fn) {
 		return result;
 	};
 
-	// Preserve .conversion property if there is one
+	// preserve .conversion property if there is one
 	if ('conversion' in fn) {
 		wrappedFn.conversion = fn.conversion;
 	}
@@ -61,17 +58,17 @@ function wrapRounded(fn) {
 	return wrappedFn;
 }
 
-models.forEach(fromModel => {
+models.forEach(function (fromModel) {
 	convert[fromModel] = {};
 
 	Object.defineProperty(convert[fromModel], 'channels', {value: conversions[fromModel].channels});
 	Object.defineProperty(convert[fromModel], 'labels', {value: conversions[fromModel].labels});
 
-	const routes = route(fromModel);
-	const routeModels = Object.keys(routes);
+	var routes = route(fromModel);
+	var routeModels = Object.keys(routes);
 
-	routeModels.forEach(toModel => {
-		const fn = routes[toModel];
+	routeModels.forEach(function (toModel) {
+		var fn = routes[toModel];
 
 		convert[fromModel][toModel] = wrapRounded(fn);
 		convert[fromModel][toModel].raw = wrapRaw(fn);
diff --git a/node_modules/color-convert/package.json b/node_modules/color-convert/package.json
index 6e48000c..dfbc4714 100644
--- a/node_modules/color-convert/package.json
+++ b/node_modules/color-convert/package.json
@@ -1,7 +1,7 @@
 {
   "name": "color-convert",
   "description": "Plain color conversion functions",
-  "version": "2.0.1",
+  "version": "1.9.3",
   "author": "Heather Arthur <fayearthur@gmail.com>",
   "license": "MIT",
   "repository": "Qix-/color-convert",
@@ -9,9 +9,6 @@
     "pretest": "xo",
     "test": "node test/basic.js"
   },
-  "engines": {
-    "node": ">=7.0.0"
-  },
   "keywords": [
     "color",
     "colour",
@@ -29,6 +26,7 @@
   "files": [
     "index.js",
     "conversions.js",
+    "css-keywords.js",
     "route.js"
   ],
   "xo": {
@@ -39,10 +37,10 @@
     }
   },
   "devDependencies": {
-    "chalk": "^2.4.2",
-    "xo": "^0.24.0"
+    "chalk": "1.1.1",
+    "xo": "0.11.2"
   },
   "dependencies": {
-    "color-name": "~1.1.4"
+    "color-name": "1.1.3"
   }
 }
diff --git a/node_modules/color-convert/route.js b/node_modules/color-convert/route.js
index 1a08521b..0a1fdea6 100644
--- a/node_modules/color-convert/route.js
+++ b/node_modules/color-convert/route.js
@@ -1,7 +1,7 @@
-const conversions = require('./conversions');
+var conversions = require('./conversions');
 
 /*
-	This function routes a model to all other models.
+	this function routes a model to all other models.
 
 	all functions that are routed have a property `.conversion` attached
 	to the returned synthetic function. This property is an array
@@ -12,11 +12,11 @@ const conversions = require('./conversions');
 */
 
 function buildGraph() {
-	const graph = {};
+	var graph = {};
 	// https://jsperf.com/object-keys-vs-for-in-with-closure/3
-	const models = Object.keys(conversions);
+	var models = Object.keys(conversions);
 
-	for (let len = models.length, i = 0; i < len; i++) {
+	for (var len = models.length, i = 0; i < len; i++) {
 		graph[models[i]] = {
 			// http://jsperf.com/1-vs-infinity
 			// micro-opt, but this is simple.
@@ -30,18 +30,18 @@ function buildGraph() {
 
 // https://en.wikipedia.org/wiki/Breadth-first_search
 function deriveBFS(fromModel) {
-	const graph = buildGraph();
-	const queue = [fromModel]; // Unshift -> queue -> pop
+	var graph = buildGraph();
+	var queue = [fromModel]; // unshift -> queue -> pop
 
 	graph[fromModel].distance = 0;
 
 	while (queue.length) {
-		const current = queue.pop();
-		const adjacents = Object.keys(conversions[current]);
+		var current = queue.pop();
+		var adjacents = Object.keys(conversions[current]);
 
-		for (let len = adjacents.length, i = 0; i < len; i++) {
-			const adjacent = adjacents[i];
-			const node = graph[adjacent];
+		for (var len = adjacents.length, i = 0; i < len; i++) {
+			var adjacent = adjacents[i];
+			var node = graph[adjacent];
 
 			if (node.distance === -1) {
 				node.distance = graph[current].distance + 1;
@@ -61,10 +61,10 @@ function link(from, to) {
 }
 
 function wrapConversion(toModel, graph) {
-	const path = [graph[toModel].parent, toModel];
-	let fn = conversions[graph[toModel].parent][toModel];
+	var path = [graph[toModel].parent, toModel];
+	var fn = conversions[graph[toModel].parent][toModel];
 
-	let cur = graph[toModel].parent;
+	var cur = graph[toModel].parent;
 	while (graph[cur].parent) {
 		path.unshift(graph[cur].parent);
 		fn = link(conversions[graph[cur].parent][cur], fn);
@@ -76,16 +76,16 @@ function wrapConversion(toModel, graph) {
 }
 
 module.exports = function (fromModel) {
-	const graph = deriveBFS(fromModel);
-	const conversion = {};
+	var graph = deriveBFS(fromModel);
+	var conversion = {};
 
-	const models = Object.keys(graph);
-	for (let len = models.length, i = 0; i < len; i++) {
-		const toModel = models[i];
-		const node = graph[toModel];
+	var models = Object.keys(graph);
+	for (var len = models.length, i = 0; i < len; i++) {
+		var toModel = models[i];
+		var node = graph[toModel];
 
 		if (node.parent === null) {
-			// No possible conversion, or this node is the source model.
+			// no possible conversion, or this node is the source model.
 			continue;
 		}