color scrapper

javascript:(function(){var%20c=new%20Set,d=["color","background-color"];document.querySelectorAll("body%20*").forEach(function(a){var%20b=window.getComputedStyle(a);d.forEach(function(a){return%20c.add(b.getPropertyValue(a))})});function%20e(a){var%20b=document.createElement("span");b.setAttribute("style","display:inline-block;width:150px;height:150px;line-height:150px;text-align:center;box-shadow:1px%200px%203px%20#333;font-family:Arial;font-size:16px;");b.textContent=a;b.style.backgroundColor=a;return%20b}var%20f=document.createElement("div");%20document.body.insertBefore(f,document.body.childNodes[0]);f.setAttribute("style","width:100%;z-index:9999;");c.forEach(function(a){return%20f.append(e(a))});})()