gistfile1.java

void setup()
{
  size(400,400);
  background(255);
}
void drawBlob(int x,int y)
{
  noStroke();
  float val=0f;
  for(int i=0;i<10;i++)
  {
    
    fill(color(128+10*i,128+10*i,128+10*i));
    ellipse(x,y,50-i*2,50-i*2);
    val+=0.01;
  }
}
void draw()
{
  background(255);
  drawBlob(200,200);
}