It would be helpful to have a colorblind mode with different patterns on the balls, or allow the numbers to always be on top
Logged in just to make this same request; perhaps allow the user to edit the ball colours? I struggle seeing the difference between the current colours for 1, 5 and 6 unless I look really hard. Aside from that, l think this is a fantastic little game and I have happily "wasted" many hours on it already.