Gulp

int num = 20;
myLine[] lines = new myLine[num];
color bg = #C02942;
color f = #ECD078;
color s = #006666;
float y, theta, diam;
float speed = .3;
float diam1=1;
float diam2 = 0;
boolean grow1 = true;
boolean grow2 = true;


void setup() {
  size(300, 300);
  background(bg);
  noStroke();
  diam1= 0;

  for (int i=0; i<lines.length; i++) {
    float _y = i*(height/num);
    lines[i]= new myLine(_y);
  }
}

void draw() {
  background(bg);
  fill(f);
  if (grow1) diam1 +=4;
  if (diam1 > width*.75) grow1 = false;
  ellipse(width/2, height/2, diam1, diam1);
  for (int i=0; i<lines.length; i++) {
    lines[i].display();
  }
  fill(#542437);
  ellipse(width/2, height/2, diam2, diam2);
  if (frameCount > 90 && grow2==true) {
    diam2 += 30;
  }
  else {
    diam2 -= 3*.9;
  }
  if (diam2 > diam1+10) {
    grow2 = false;
    diam1 = 0;
  }
  if (diam2 < 1) diam2 =0;

  //if (frameCount % 4 == 0) saveFrame("line-###.gif");
  //if (frameCount > 211) noLoop();
}

class myLine {
  float y;

  myLine(float _y) {
    y = _y;
  }

  void display() {
    strokeWeight(8);
    stroke(bg);
    y -= speed;
    if (y < 0) y = height;
    line(0, y, width, y);
    noStroke();
  }
}