Fix color clustering

Author: dy

package.json

@@ -100,7 +100,7 @@
     "regl": "^1.3.1",
     "regl-error2d": "^2.0.3",
     "regl-line2d": "^2.1.4",
-    "regl-scatter2d": "^2.1.13",
+    "regl-scatter2d": "^2.1.16",
     "right-now": "^1.0.0",
     "robust-orientation": "^1.1.3",
     "sane-topojson": "^2.0.0",