createCanvas(windowWidth, windowHeight);

  frameRate(1.5);

  background('#dddddd');

}

​

function draw() {

  drawTriangle();

}

​

function drawTriangle(){

  let color1 = color('#3256ab')

  let color2 = color('#bb4411')

  let randomValue = random();

  let color3 = lerpColor(color1, color2, randomValue);

  noStroke();

  fill(color3)

  let x1 = mouseX;

  let y1 = mouseY;

  let x2 = random(0, width);

  let y2 = random(0, height);

  let x3 = random(0, width);

  let y3 = random(0, height);

  triangle(x1, y1,

           x2, y2,

           x3, y3);

}

​

​

​