​

function setup() {

  createCanvas(100, 100);

}

​

function draw() {

  background(220);

  let pink = color("#FF2D98");

  let green = color("#A9FF8B");

  let colour = lerpColor(green, pink, amount);

  background(colour);

  if (amount > 0) amount -= 0.05;

}

​

function mousePressed() {

  amount = 1;

}