feat(ui): add type filter toggles

node_modules/d3-selection/src/creator.js

@@ -0,0 +1,25 @@
+import namespace from "./namespace.js";
+import {xhtml} from "./namespaces.js";
+
+function creatorInherit(name) {
+  return function() {
+    var document = this.ownerDocument,
+        uri = this.namespaceURI;
+    return uri === xhtml && document.documentElement.namespaceURI === xhtml
+        ? document.createElement(name)
+        : document.createElementNS(uri, name);
+  };
+}
+
+function creatorFixed(fullname) {
+  return function() {
+    return this.ownerDocument.createElementNS(fullname.space, fullname.local);
+  };
+}
+
+export default function(name) {
+  var fullname = namespace(name);
+  return (fullname.local
+      ? creatorFixed
+      : creatorInherit)(fullname);
+}