Lighter by the frame - OpenProcessing

mySketch

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​
function setup() {
    initializeFields();
    // frameRate(25);
    createCanvas(1600, 1200);
    background(15, 93, 100);
    x = -80;
    y = 0;
}
​
function draw() {
    strokeWeight(10);
    stroke(69, 175, 185, 10);
    line(0, y++, width, y++);
    if (y > height) {
        y = 0;
    } else {
        y += 1;
    }
}
​
function initializeFields() {
}
​