Index: node_modules/d3-scale-chromatic/src/sequential-multi/rainbow.js
===================================================================
--- node_modules/d3-scale-chromatic/src/sequential-multi/rainbow.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-scale-chromatic/src/sequential-multi/rainbow.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,17 @@
+import {cubehelix} from "d3-color";
+import {interpolateCubehelixLong} from "d3-interpolate";
+
+export var warm = interpolateCubehelixLong(cubehelix(-100, 0.75, 0.35), cubehelix(80, 1.50, 0.8));
+
+export var cool = interpolateCubehelixLong(cubehelix(260, 0.75, 0.35), cubehelix(80, 1.50, 0.8));
+
+var c = cubehelix();
+
+export default function(t) {
+  if (t < 0 || t > 1) t -= Math.floor(t);
+  var ts = Math.abs(t - 0.5);
+  c.h = 360 * t - 100;
+  c.s = 1.5 - 1.5 * ts;
+  c.l = 0.8 - 0.9 * ts;
+  return c + "";
+}