Another userscript...

userscript.js

@@ -0,0 +1,57 @@
+// ==UserScript==
+// @name         Github-XP
+// @version      0.1
+// @description  Microsoft + GitHub = ❤️. Make it official by giving your GitHub experience some Windows XP flair.
+// @author       https://github.com/martenbjork/github-xp (userscript by Christian7573)
+// @match        https://*.github.com/*
+// @grant        GM_xmlhttpRequest
+// @grant        GM_getValue
+// @grant        GM_setValue
+// @grant        GM_registerMenuCommand
+// @resource     css https://raw.githubusercontent.com/martenbjork/github-xp/master/xp.css
+// @grant        GM_getResourceText
+// ==/UserScript==
+
+(function() {
+
+    var clippyHideCss = "body[class]:after, body[class]:before,"+
+        ".js-issue-row:first-child:before, .repository-meta-content:before, #partial-discussion-header:before, .js-user-profile-bio-contents:before, .compare-pr-placeholder:before,"+
+        ".js-issue-row:first-child:after, .repository-meta-content:after, #partial-discussion-header:after, .js-user-profile-bio-contents:after, .compare-pr-placeholder:after "+
+        "{display: none !important;}"
+
+    if (GM_getValue("clippyEnabled") == null || GM_getValue("clippyEnabled") == undefined) GM_setValue("clippyEnabled","true");
+    function updateClippy() {
+        var value = GM_getValue("clippyEnabled") === "true";
+        if (document.querySelector("#clippyToggle") === null) {
+            var clippyToggle = document.createElement("style");
+            clippyToggle.id = "clippyToggle";
+            document.body.appendChild(clippyToggle);
+        }
+        if (value) document.querySelector("#clippyToggle").innerHTML = "";
+        else document.querySelector("#clippyToggle").innerHTML = clippyHideCss;
+    }
+    GM_registerMenuCommand("Toggle Clippy",function() {
+        GM_setValue("clippyEnabled",(!(GM_getValue("clippyEnabled") === "true")).toString());
+        updateClippy();
+    });
+    updateClippy();
+
+    var style = document.createElement("style");
+    style.innerHTML = GM_getResourceText("css");
+    style.type = "text/css";
+    document.head.appendChild(style);
+
+    /*GM_xmlhttpRequest({
+        method: "GET",
+        url: url,
+        onload: function() {
+            console.log(arguments);
+            console.log(this);
+            var style = document.createElement("style");
+            style.innerHTML = this.responseText;
+            style.type = "text/css";
+            document.head.appendChild(style);
+        }
+    });*/
+
+})();