Fade android url-bar color with javascript and jquery.

color-fade.js

var colors = ['#000000', '#080808', '#0F0F0F', '#171717', '#1F1F1F', '#262626	', '#2E2E2E'];
var colors_length = colors.filter(function () { return true; }).length -1;
var currentColor = 0;
var forwards = true;
setInterval(function() {
  if(forwards)
  {
    $("meta[name='theme-color']").attr("content", colors[currentColor]);
    currentColor++;

    if(currentColor >= colors_length)
    {
      forwards = false;
    }
  }
  else
  {
    $("meta[name='theme-color']").attr("content", colors[currentColor]);
    currentColor--;
    if(currentColor <= 0)
    {
      forwards = true;
    }
  }

}, 100);