Processing 1 (Epilepsia)

void setup(){
  size(100,100);

}
void draw(){
    background(random(0,255));
  stroke(random(0,255),random(0,255),random(0,255));
  line(0,100,mouseX,mouseY);
  line(100,0,mouseX,mouseY);
  line(100,100,mouseX,mouseY);
  line(0,0,mouseX,mouseY);
  line(50,50,mouseX,mouseY);
  fill(random(0,255),random(0,255),random(0,255));
  stroke(random(0,255),random(0,255),random(0,255));
  ellipse(50,50,mouseX,mouseY);
}