I've increased the number of stars from 25 to 80 and changed their positioning to spread across the entire sky height (0-100%) instead of just the top 40%. The stars now create a more immersive starfield effect that covers the full background while maintaining their subtle shimmering animation.

I've added a star count control that allows you to adjust the number of stars from 0 to 200 in increments of 10. The stars are dynamically regenerated whenever you change the count, so you can see the effect immediately. The control is positioned at the top of the controls panel for easy access.