/*  Its raining in Seattle                                  */
int i;                                // iteration variable
float x;                              // size of droplet

void setup( ){
  size(500, 500);                     // set canvas
  background(0);                      // pick black for the app
  frameRate(5);                       // more fun to go slow
  fill(0);
}

void draw( ) {
  if (random(0,1) < 0.5) {            // dark or light drop?
    stroke(180,180,255);              // dark this time
  } else {
    stroke(200,200, 255);             // it's lighter
  }
  for (i = 0; i < 10; i++) {
    x = random(10, 20);               // how big should drop be
    ellipse(random(1,499), random(1, 499), x, x); // rain!
  }
}