Add interactive roadmap setup

lib/renderer/utils.ts

@@ -0,0 +1,28 @@
+export function getRGBFromDecimalColor(color: number) {
+  let red = (color >> 16) & 0xff;
+  let green = (color >> 8) & 0xff;
+  let blue = color & 0xff;
+  return `rgb(${red},${green},${blue})`;
+}
+
+export function makeSVGElement(
+  type: string,
+  attributes: Record<string, any> = {},
+  parent?: any
+): SVGElement {
+  let element = document.createElementNS('http://www.w3.org/2000/svg', type);
+
+  for (let prop in attributes) {
+    if (!attributes.hasOwnProperty(prop)) {
+      continue;
+    }
+
+    element.setAttribute(prop, attributes[prop]);
+  }
+
+  if (parent) {
+    parent.appendChild(element);
+  }
+
+  return element;
+}