Processing Forum
int windowHeight=200;
void setup() {size (200, 200);smooth();stroke(0);fill(255);ellipseMode(CORNER);}
void draw() {background(128);for (int i=0;i<100;i++){ellipse((i/10)*20,(i%10)*20,20,20);}windowHeight++;frame.setSize(200,windowHeight);}
setBackground(new java.awt.Color(255,0,0));