createCanvas(400, 400);

}

​

​

t = 0

dt = 5

r = 221

g = 13

b = 150

function draw() {

  if (t > 255 || t< 0 ) 

  { dt = -dt;

   if ( t < 0)

   {

   r = random(0,255);

   g = random(0,255);

   b = random(0,255);}}

  t += dt

  clear()

  background(r, g, b, t)

  print(t)

}