// Write your code here
// - `context` is the canvas context
// - `persistent` is an empty object which is preserved between frames
context.fillStyle = "rgba(0,0,0,0.05)";
context.fillRect(0, 0, 32, 32);
context.fillStyle = "#FFFFFF";
context.fillRect(Math.floor(Math.random() * 32), Math.floor(Math.random() * 32), 1, 1);
