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function setup() {
createCanvas(windowWidth, windowHeight);
background(0);
}
function draw() {
noFill();
stroke(255, 70);
// |
// | adjust this ;)
// v
mil = millis() / 50;
translate(windowWidth / 2, windowHeight / 2);
rotate(mil);
translate(mil, 0);
triangle(30, 75, mil / 3, 20, 86, 75);
}