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function setup() {
createCanvas(600, 400);
background(0);
noStroke();
for(let i = 0;i<150;i++){
let z = random(50)
fill(random(240,255),random(100,250),random(200),150);
rect(random(600),random(400),z,z);
}
fill(255);
stroke(0);
rect(0,0,600,10);
rect(0,10,10,390);
rect(590,10,10,380);
rect(0,390,600,10);
rect(295,0,10,400);
for(let i=0;i<200;i++){
let x = random(0,600);
let y = random(0,400);
stroke(255);
line(x,y,x+5,y+20);
}
}