s.activeElement = el;
        this.$.canvasControls.selectedElement = this.activeElement;
        this.$.canvasControls.update(this.activeElement === this.$.viewContainer);
      }

      createElement(event) {
        let tag = event.detail.name.toLowerCase();
        let el = document.createElement(tag);
        this.$.viewContainer.add(el);
        // If we haven't before, save this initial state of a <tag> element,
        // so that we can diff it to produce the actual state of the world
        // cod