createCanvas(400, 400);

}

​

function draw() {

  background(220);

  // defines the width of the stroke

  //strokeWeight(3); 

  // chooses a color for the outline of the following shapes

  stroke(255,0,0); 

  // chooses a color for the inside of the following shapes

  fill(0,255,0);

  circle(width/4,height/2, 50);

​

  noStroke();

  fill(0,0,255);

  triangle(10, 10, 150, 30, 100, 200);

  stroke(255,0,0);

  noFill();

  strokeWeight(10);

  square(mouseX, mouseY, 55);

​

}