Chnage White Background on Pages to some grey shade for eye comfort

bg-bookmarklet.js

// Keep adding more sites
javascript:(function(){
    document.body.style.backgroundColor = "#eee";
    var hostname = window.location.host;
    if (hostname.includes("medium.com")) {
        var mediumDivs=document.getElementsByClassName("section-content");
        Array.prototype.forEach.call(mediumDivs,function(e){e.style.backgroundColor="#eee"});   
    } else if (hostname.includes("spark.apache.org")) {
        var sparkDocs=document.getElementsByClassName("container-wrapper");
        Array.prototype.forEach.call(sparkDocs,function(e){e.style.backgroundColor="#eee"});
        var sparkDocs=document.getElementsByClassName("content");
        Array.prototype.forEach.call(sparkDocs,function(e){e.style.backgroundColor="#eee"});
    } else if (hostname.includes("aws.amazon.com")) {
        var amazonDocMain = document.getElementById("main");
        amazonDocMain.style.backgroundColor="#eee";
    } else if (hostname.includes("github.intuit.com") || hostname.includes("github.com")) {
        var githubReadMe = document.getElementsByClassName("entry-content");
        Array.prototype.forEach.call(githubReadMe,function(e){e.style.backgroundColor="#eee"});
    }
})();

🎉 Too much room for optimisations