This sketch is created with an older version of Processing,
and doesn't work on browsers anymore.
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void setup () {
size (800,800);
background (0);
}
void draw () {
for(int i=12; i<900; i+= 10) {
for(int j=12; j<900; j+=10){
fill (0,255,100);
rect (random (j), random (i),random (3), random (3));
}
}
for(int i=5; i<900; i+= 80) {
for(int j=5; j<900; j+=80){
fill (255,130,0);
rect (random (j), random (i),random (20), random (18));
}
}
}