diff --git a/refactoring/flappy-bird/src/main/java/com/example/flappybird/Sprites.java b/refactoring/flappy-bird/src/main/java/com/example/flappybird/Sprites.java
index 88de6e8..b27ad1e 100644
--- a/refactoring/flappy-bird/src/main/java/com/example/flappybird/Sprites.java
+++ b/refactoring/flappy-bird/src/main/java/com/example/flappybird/Sprites.java
@@ -114,7 +114,7 @@ public class Sprites {
 	 * @param  image     BufferedImage object
 	 * @return           New resized image
 	 */
-	private static BufferedImage resize (BufferedImage image) {
+	private static BufferedImage resize(BufferedImage image) {
 		// New width and height
         // Resize factor to match frame size
         double RESIZE_FACTOR = 2.605;
diff --git a/refactoring/flappy-bird/uml/class-diagram.png b/refactoring/flappy-bird/uml/class-diagram.png
index 80428ea..76d791d 100644
Binary files a/refactoring/flappy-bird/uml/class-diagram.png and b/refactoring/flappy-bird/uml/class-diagram.png differ