diff --git a/theme.js b/theme.js
index f7d2aea..8144ffe 100644
--- a/theme.js
+++ b/theme.js
@@ -1,6 +1,3 @@
-// Light/dark switch. The page follows the OS theme until the button is used;
-// the choice is then remembered in localStorage. Loaded in <head> so a saved
-// theme is applied before the page paints.
 (function () {
   var root = document.documentElement;
   var media = window.matchMedia('(prefers-color-scheme: dark)');