I've made this simple game in javascript using canvas. My goal is to create a series of little games like that using simples physics (golf, bowling, table football...) as demonstrated in this other project:

https://github.com/victorqribeiro/sphereCollision

It would be nice to fix the color of the balls, I don't mind if the striped balls don't "rotate".

Fix you mean following the colors of a standard billiard?

Yes, for example I expected the 8 ball to be black.

Ok, is this the same in every country? I use to play sinuca in a bar which I know is different than other types

I found this: https://en.wikipedia.org/wiki/Billiard_ball

I expect most people to expect the "pool" ball coloration.

Thank you. I'm already in bed, but tomorrow I'll adjust the colors