diff --git a/src/drawables/shapes/noisy-polygon-factory.ts b/src/drawables/shapes/noisy-polygon-factory.ts
index ee76099..643c583 100644
--- a/src/drawables/shapes/noisy-polygon-factory.ts
+++ b/src/drawables/shapes/noisy-polygon-factory.ts
@@ -7,6 +7,7 @@ import { PolygonBase, PolygonFactory } from './polygon-factory';
 interface NoisyPolygonBase extends PolygonBase {
   randomOffset: number;
 }
+
 /**
  * @category Drawable
  */
diff --git a/src/graphics/graphics-library/frame-buffer/frame-buffer.ts b/src/graphics/graphics-library/frame-buffer/frame-buffer.ts
index e00053c..44a9071 100644
--- a/src/graphics/graphics-library/frame-buffer/frame-buffer.ts
+++ b/src/graphics/graphics-library/frame-buffer/frame-buffer.ts
@@ -28,7 +28,7 @@ export abstract class FrameBuffer {
 
   public setSize(): boolean {
     const realToCssPixels =
-      (this.enableHighDpiRendering ? window.devicePixelRatio : 1) * this.renderScale;
+      (this.enableHighDpiRendering ? devicePixelRatio : 1) * this.renderScale;
 
     const canvasWidth = (this.gl.canvas as HTMLCanvasElement).clientWidth;
     const canvasHeight = (this.gl.canvas as HTMLCanvasElement).clientHeight;