//
size(300,300);

background(250,250,0);
rectMode(CENTER_DIAMETER);

strokeWeight(10);
stroke(25,120,200);

fill(0,200,250);
rect(150,150,200,200);

fill(0,150,250);
rect(150,150,150,150);

fill(0,50,250);
rect(150,150,100,100);

line(50,250,250,50);
line(50,50,250,250);

ellipseMode(CENTER_DIAMETER);

fill(255,0,0);
ellipse(150,150,100,100);

fill(255,255,255);
ellipse(150,150,50,50);