Processing - Project 14 Starter kit

import processing.serial.*;
Serial myPort;

PImage logo;

int bgcolor = 0;

void setup(){
  colorMode(HSB, 255);
  frameRate(30);

  logo = loadImage("http://arduino.cc/logo.png");
  size(logo.width, logo.height);

  println("Available serial ports:");
  println(Serial.list());
  myPort = new Serial(this, Serial.list()[0], 9600);

  background(0);
}

void draw(){
  if (myPort.available() > 0){
    bgcolor = myPort.read();
    println(bgcolor);
  }
  background(bgcolor, 255, 255);
  image(logo, 0, 0);
}