void setup() { size(200, 200); background(#F6FF03); noStroke(); rectMode(CENTER); noLoop(); } void draw() { draw_rect(150, 50, 100, 100); draw_rect(150, 150, 100, 100); draw_rect(50, 150, 100, 100); draw_rect(150, 150, 100, 100); draw_rect(50,50,100,100); } void draw_rect(int xloc, int yloc, int size, int num) { float grayvalues = 255/num; float steps = size/num; for(int i=0; i