   }
   
   func createPaddle() -> SKSpriteNode {
-    let paddle = SKSpriteNode(color: UIColor.yellowColor(), size: CGSize(width: 5, height: 30))
+    let paddle = SKSpriteNode(color: UIColor.lightGrayColor(), size: CGSize(width: 5, height: 30))
     
     paddle.physicsBody = SKPhysicsBody(rectangleOfSize: paddle.size)
     paddle.physicsBody?.categoryBitMask = paddleCategory

  }
  
  func createBall() {
    let ball = SKSpriteNode(color: SKColor.redColor(), size: CGSize(width: 8, height: 8))
    ball.position = CGPoint(x: frame.size.width - 30.0 - ball.size.width, y: CGRectGetMidY(frame))
    ball.name = ballName
    

  }
  
  func createBlocks() {
    for i in 0..<3 {
      var color = SKColor.greenColor()
      if i == 1 {
        color = SKColor.redColor()
      } else if i == 2 {
        color = SKColor.yellowColor()
      }
      
      for j in 0..<5 {
        let block = SKSpriteNode(color: color, size: CGSize(width: 5, height: 19))
        block.position = CGPoint(x: 20+CGFloat(i)*6, y: CGFloat(j)*20 + 10)
        block.name = blockName
        block.physicsBody = SKPhysicsBody(rectangleOfSize: block.size)
