Running a script to change the web page color at each refresh interval. Using Easy Auto Refresh https://chrome.google.com/webstore/detail/easy-auto-refresh/aabcgdmkeabbnleenpncegpcngjpnjkc

color.js

document.querySelector('body'); 

function getRandomColor() {
  var letters = '0123456789ABCDEF';
  var color = '#';
  for (var i = 0; i < 6; i++) {
    color += letters[Math.floor(Math.random() * 16)];
  }
  return color;
}

setTimeout(() => {
  document.querySelector('body').style.background = getRandomColor();
}, 100);