// only one time

  createCanvas(400, 400);

  // background(255, 204, 0);

  // background('rgba(0,255,0, 0.25)');

  background(0)

  describe('canvas with soft green background');

  describe('canvas with yellow background');

  fill(6,100,200);

  rect(0,0,200,400);

  stroke(0,0,0);

  line(0,0,200,400)

  stroke(255,255,255)

  line(200,400,400,0)

  strokeWeight(10)

  // stroke(255,255,30)

  fill(255,255,255)

  ellipse(200,200,100)

  // noStroke()

  // fill(255,0,0)

  // ellipse(200,200,30)

  noStroke()

  fill(255,0,0)

  beginShape();

    vertex(200,300)

    vertex(300,400)

    vertex(400,20)

  endShape();

}

​

function draw() {

​

}