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function setup() {
createCanvas(windowWidth, windowHeight);
background("#fef9e0");
stroke("#00599b");
strokeWeight(2);
strokeCap(SQUARE);
for (let y = 0; y < height; y+=10) {
for (let x = 0; x < width; x+=10) {
line(x, y, x+5, y+5);
}
}
}