createCanvas(400, 400);

  rectMode(CENTER); //fixes the left corner issue

}

​

function draw() {

  background(52, 204, 235); //0-255 greyscale, you can do name of color, or hex

fill(210);

strokeWeight(20);

stroke("blue");

ellipse(200,200,200,200); //(x, y, w, h) x,y is the center point

​

  noStroke();

  fill("purple");

  rect(200, 200, 100, 100); //rectangles draw from left hand corner (x, y, w, h)

  strokeWeight(10);

  stroke(0);

  line(90,100,300,310);

  print(mouseX, mouseY); //let's you know where mouse is, *love this function*

}