diff --git a/example/index.html b/example/index.html
index 65fe284..a6979de 100644
--- a/example/index.html
+++ b/example/index.html
@@ -4,16 +4,50 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <title>Welcome to the dark side 🌓</title>
-  <style>/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}main{display:block}h1{font-size:2em;margin:.67em 0}hr{box-sizing:content-box;height:0;overflow:visible}pre{font-family:monospace,monospace;font-size:1em}a{background-color:transparent}abbr[title]{border-bottom:none;text-decoration:underline;text-decoration:underline dotted}b,strong{font-weight:bolder}code,kbd,samp{font-family:monospace,monospace;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}img{border-style:none}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:1.15;margin:0}button,input{overflow:visible}button,select{text-transform:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{border-style:none;padding:0}[type=button]:-moz-focusring,[type=reset]:-moz-focusring,[type=submit]:-moz-focusring,button:-moz-focusring{outline:1px dotted ButtonText}fieldset{padding:.35em .75em .625em}legend{box-sizing:border-box;color:inherit;display:table;max-width:100%;padding:0;white-space:normal}progress{vertical-align:baseline}textarea{overflow:auto}[type=checkbox],[type=radio]{box-sizing:border-box;padding:0}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}details{display:block}summary{display:list-item}template{display:none}[hidden]{display:none}body{font-family:system-ui,-apple-system,sans-serif;text-align:center}a{text-decoration:none}h1{font-size:1.8em}.dark-mode-toggle{cursor:pointer;padding:1em;visibility:hidden}body.light{background-color:#fff;color:#222}body.light a{color:#06f}body.dark{background-color:#222;color:#fff}body.dark a{color:#fe0}</style>
+  <style>/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}main{display:block}h1{font-size:2em;margin:.67em 0}hr{box-sizing:content-box;height:0;overflow:visible}pre{font-family:monospace,monospace;font-size:1em}a{background-color:transparent}abbr[title]{border-bottom:none;text-decoration:underline;text-decoration:underline dotted}b,strong{font-weight:bolder}code,kbd,samp{font-family:monospace,monospace;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}img{border-style:none}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:1.15;margin:0}button,input{overflow:visible}button,select{text-transform:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{border-style:none;padding:0}[type=button]:-moz-focusring,[type=reset]:-moz-focusring,[type=submit]:-moz-focusring,button:-moz-focusring{outline:1px dotted ButtonText}fieldset{padding:.35em .75em .625em}legend{box-sizing:border-box;color:inherit;display:table;max-width:100%;padding:0;white-space:normal}progress{vertical-align:baseline}textarea{overflow:auto}[type=checkbox],[type=radio]{box-sizing:border-box;padding:0}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}details{display:block}summary{display:list-item}template{display:none}[hidden]{display:none}</style>
+  <style>
+      /* Global styles */
+      body {
+        font-family: system-ui, -apple-system, sans-serif;
+        text-align: center;
+      }
+
+      /* Light theme */
+      body.light {
+        background-color: #fff;
+        color: #222;
+      }
+      body.light a {
+        color: #06f;
+      }
+
+      /* Dark theme */
+      body.dark {
+        background-color: #222;
+        color: #fff;
+      }
+      body.dark a {
+        color: #fe0;
+      }
+
+      /* The Toggle (TM) */
+      .dark-mode-toggle {
+        padding: 1em;
+        cursor: pointer;
+
+        /* Hide the toggle initially if the user's JS is disabled: */
+        visibility: hidden;
+      }
+  </style>
 </head>
-<body class="light">
+<body class="light"> <!-- default to light theme -->
   <h1>Welcome to the dark side 🌓</h1>
 
   <button class="dark-mode-toggle">💡 Click to see the light... or not.</button>
 
   <p><a href="https://github.com/jakejarvis/dark-mode" target="_blank" rel="noopener">View the source code</a> or <a href="https://jarv.is/notes/dark-mode/" target="_blank" rel="noopener">read the post</a>.</p>
 
-  <script src="../dist/dark-mode.js"></script>
+  <script src="../dist/dark-mode.js"></script> <!-- or use CDN: https://unpkg.com/@jakejarvis/dark-mode/dist/dark-mode.min.js -->
   <script>
     window.darkMode.init({
       toggle: document.querySelector(".dark-mode-toggle"),
diff --git a/src/index.d.ts b/src/index.d.ts
index 8d123cb..f18f405 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -1,8 +1,6 @@
-interface DarkModeOptions {
+export function init(options?: {
   toggle?: HTMLElement;
   classes?: { dark: string, light: string };
   default?: string;
   storageKey?: string;
-}
-
-export function init(options?: DarkModeOptions): void;
+}): void;