oh please work

.atom/packages/atom-material-ui/lib/helper/toggle-class-name.js

@@ -0,0 +1,11 @@
+'use babel';
+
+export default function toggleClassName(className, mustAddClass) {
+    const root = document.documentElement;
+
+    if (mustAddClass) {
+        root.classList.add(className);
+    } else {
+        root.classList.remove(className);
+    }
+}