diff --git a/src/twisty/dom/viewers/Twisty3DCanvas.ts b/src/twisty/dom/viewers/Twisty3DCanvas.ts
index 75526b132..7362c1fe4 100644
--- a/src/twisty/dom/viewers/Twisty3DCanvas.ts
+++ b/src/twisty/dom/viewers/Twisty3DCanvas.ts
@@ -7,7 +7,7 @@ import { twisty3DCanvasCSS } from "./Twisty3DCanvas.css";
 import { TwistyOrbitControls } from "./TwistyOrbitControls";
 import { TwistyViewerElement } from "./TwistyViewerElement";
 import { customElementsShim } from "../element/node-custom-element-shims";
-import Stats from "three/examples/jsm/libs/stats.module";
+import Stats from "../../../vendor/node_modules/three/examples/jsm/libs/stats.module";
 
 let SHOW_STATS = false;
 // Show render stats for newly contructed renderers.
diff --git a/src/vendor/node_modules/three/examples/jsm/libs/stats.module.d.ts b/src/vendor/node_modules/three/examples/jsm/libs/stats.module.d.ts
new file mode 100644
index 000000000..04f8de29c
--- /dev/null
+++ b/src/vendor/node_modules/three/examples/jsm/libs/stats.module.d.ts
@@ -0,0 +1,24 @@
+declare interface Stats {
+	REVISION: number;
+	dom: HTMLDivElement;
+	addPanel( panel: Stats.Panel ): Stats.Panel;
+	showPanel( id: number ): void;
+	begin(): void;
+	end(): void;
+	update(): void;
+	domElement: HTMLDivElement;
+	setMode( id: number ): void;
+}
+
+declare function Stats(): Stats;
+
+declare namespace Stats {
+	interface Panel {
+		dom: HTMLCanvasElement;
+		update( value: number, maxValue: number ): void;
+	}
+
+	function Panel( name?: string, fg?: string, bg?: string ): Panel;
+}
+
+export default Stats;
diff --git a/src/vendor/node_modules/three/examples/jsm/libs/stats.module.js b/src/vendor/node_modules/three/examples/jsm/libs/stats.module.js
new file mode 100644
index 000000000..09ab9902d
--- /dev/null
+++ b/src/vendor/node_modules/three/examples/jsm/libs/stats.module.js
@@ -0,0 +1,171 @@
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+var Stats = function () {
+
+	var mode = 0;
+
+	var container = document.createElement( 'div' );
+	container.style.cssText = 'position:fixed;top:0;left:0;cursor:pointer;opacity:0.9;z-index:10000';
+	container.addEventListener( 'click', function ( event ) {
+
+		event.preventDefault();
+		showPanel( ++ mode % container.children.length );
+
+	}, false );
+
+	//
+
+	function addPanel( panel ) {
+
+		container.appendChild( panel.dom );
+		return panel;
+
+	}
+
+	function showPanel( id ) {
+
+		for ( var i = 0; i < container.children.length; i ++ ) {
+
+			container.children[ i ].style.display = i === id ? 'block' : 'none';
+
+		}
+
+		mode = id;
+
+	}
+
+	//
+
+	var beginTime = ( performance || Date ).now(), prevTime = beginTime, frames = 0;
+
+	var fpsPanel = addPanel( new Stats.Panel( 'FPS', '#0ff', '#002' ) );
+	var msPanel = addPanel( new Stats.Panel( 'MS', '#0f0', '#020' ) );
+
+	if ( self.performance && self.performance.memory ) {
+
+		var memPanel = addPanel( new Stats.Panel( 'MB', '#f08', '#201' ) );
+
+	}
+
+	showPanel( 0 );
+
+	return {
+
+		REVISION: 16,
+
+		dom: container,
+
+		addPanel: addPanel,
+		showPanel: showPanel,
+
+		begin: function () {
+
+			beginTime = ( performance || Date ).now();
+
+		},
+
+		end: function () {
+
+			frames ++;
+
+			var time = ( performance || Date ).now();
+
+			msPanel.update( time - beginTime, 200 );
+
+			if ( time >= prevTime + 1000 ) {
+
+				fpsPanel.update( ( frames * 1000 ) / ( time - prevTime ), 100 );
+
+				prevTime = time;
+				frames = 0;
+
+				if ( memPanel ) {
+
+					var memory = performance.memory;
+					memPanel.update( memory.usedJSHeapSize / 1048576, memory.jsHeapSizeLimit / 1048576 );
+
+				}
+
+			}
+
+			return time;
+
+		},
+
+		update: function () {
+
+			beginTime = this.end();
+
+		},
+
+		// Backwards Compatibility
+
+		domElement: container,
+		setMode: showPanel
+
+	};
+
+};
+
+Stats.Panel = function ( name, fg, bg ) {
+
+	var min = Infinity, max = 0, round = Math.round;
+	var PR = round( window.devicePixelRatio || 1 );
+
+	var WIDTH = 80 * PR, HEIGHT = 48 * PR,
+		TEXT_X = 3 * PR, TEXT_Y = 2 * PR,
+		GRAPH_X = 3 * PR, GRAPH_Y = 15 * PR,
+		GRAPH_WIDTH = 74 * PR, GRAPH_HEIGHT = 30 * PR;
+
+	var canvas = document.createElement( 'canvas' );
+	canvas.width = WIDTH;
+	canvas.height = HEIGHT;
+	canvas.style.cssText = 'width:80px;height:48px';
+
+	var context = canvas.getContext( '2d' );
+	context.font = 'bold ' + ( 9 * PR ) + 'px Helvetica,Arial,sans-serif';
+	context.textBaseline = 'top';
+
+	context.fillStyle = bg;
+	context.fillRect( 0, 0, WIDTH, HEIGHT );
+
+	context.fillStyle = fg;
+	context.fillText( name, TEXT_X, TEXT_Y );
+	context.fillRect( GRAPH_X, GRAPH_Y, GRAPH_WIDTH, GRAPH_HEIGHT );
+
+	context.fillStyle = bg;
+	context.globalAlpha = 0.9;
+	context.fillRect( GRAPH_X, GRAPH_Y, GRAPH_WIDTH, GRAPH_HEIGHT );
+
+	return {
+
+		dom: canvas,
+
+		update: function ( value, maxValue ) {
+
+			min = Math.min( min, value );
+			max = Math.max( max, value );
+
+			context.fillStyle = bg;
+			context.globalAlpha = 1;
+			context.fillRect( 0, 0, WIDTH, GRAPH_Y );
+			context.fillStyle = fg;
+			context.fillText( round( value ) + ' ' + name + ' (' + round( min ) + '-' + round( max ) + ')', TEXT_X, TEXT_Y );
+
+			context.drawImage( canvas, GRAPH_X + PR, GRAPH_Y, GRAPH_WIDTH - PR, GRAPH_HEIGHT, GRAPH_X, GRAPH_Y, GRAPH_WIDTH - PR, GRAPH_HEIGHT );
+
+			context.fillRect( GRAPH_X + GRAPH_WIDTH - PR, GRAPH_Y, PR, GRAPH_HEIGHT );
+
+			context.fillStyle = bg;
+			context.globalAlpha = 0.9;
+			context.fillRect( GRAPH_X + GRAPH_WIDTH - PR, GRAPH_Y, PR, round( ( 1 - ( value / maxValue ) ) * GRAPH_HEIGHT ) );
+
+		}
+
+	};
+
+};
+
+export default Stats;