'Transformation'- project (in the making)

I have now changed the background to black as I feel this makes the balls a lot more vibrant, almost like a disco theme. Also I have changed the code so depending on the size of the ball when you release the mouse it will either grow smaller or bigger after each bounce. If it is bigger than half the maximum size the ball when grow smaller after each bounce and if it is less than half the maximum size it will grow bigger after each bounce. I have also incorporated sound although this is not possible to show on here. The sound is similar to a basketball bounce and the smaller balls have a lower pitch sound while the bigger balls are more higher pitched. I chose this sound arrangement because I wanted to make the smaller balls seem more heavy and dense and as the ball grows larger it becomes more lighter and balloon-like. The ball will eventually pop like a bubble once it reaches its maximum size. I feel I have related sound with interaction appropriately to suit the theme of Transformation.