Clicks: 0
Bounces: 0
``` ### Key Changes: - **Pitch Black Background**: The game area background is set to `#000` to make it completely black. - **Pulsating Light Effect**: After a ball collision or boundary bounce, a temporal light pulse effect is drawn on the `backgroundCanvas` for 0.4 seconds. This uses `Date.now()` to track the timestamp of the last pulse for each ball.