var H=0

var S=360

var L=50

var chS=1.5

​

function colorSwitch(){

if (H>=360){

H=0

} else {

H+=chS

}

}

​

function preload(){

backround=loadImage('led-done.png')

}

​

function setup() {

  createCanvas(350, 450);

  colorMode(HSL)

}

​

function draw() {

  colorSwitch()

  background(H,S,L);

 image(backround,0,0)

  colorMode(RGB)

  rect(200,200,50,50)

  fill(255,0,0)

}

​

​

​