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function setup() {
createCanvas(windowWidth, windowHeight);
background(0);
}
function draw() {
stroke(100, 100, 100);
strokeWeight(1);
noFill();
line(mouseX, mouseY, 450, 450);
stroke(50);
line(mouseY, mouseX, 450, 450);
stroke(50);
line(mouseX, mouseY, 450, 450);
}