diff --git a/assets/js/lib/utterances.js b/assets/js/lib/utterances.js
index 2888768f0..c69bb0625 100644
--- a/assets/js/lib/utterances.js
+++ b/assets/js/lib/utterances.js
@@ -18,5 +18,7 @@ if (window.config?.comment?.utterances) {
     const iframe = document.querySelector('.utterances-frame')
     iframe.contentWindow.postMessage(message, 'https://utteranc.es')
   }
+  console.log(window.switchThemeEventSet)
   window.switchThemeEventSet.add(window._utterancesOnSwitchTheme)
+  console.log(window.switchThemeEventSet)
 }
diff --git a/assets/js/theme.js b/assets/js/theme.js
index 7358bd383..ce1595c88 100644
--- a/assets/js/theme.js
+++ b/assets/js/theme.js
@@ -775,7 +775,6 @@ function init () {
   window.oldScrollTop = window.newScrollTop
   window.scrollEventSet = new Set()
   window.resizeEventSet = new Set()
-  window.switchThemeEventSet = new Set()
   window.clickMaskEventSet = new Set()
   if (window.objectFitImages) objectFitImages()
   initSVGIcon()
diff --git a/exampleSite/config/_default/params.toml b/exampleSite/config/_default/params.toml
index 0d9178ad1..3034c23cf 100644
--- a/exampleSite/config/_default/params.toml
+++ b/exampleSite/config/_default/params.toml
@@ -389,9 +389,9 @@ cacheRemoteImages = false
     # Utterances comment config (https://utteranc.es/)
     # Utterances comment 评论系统设置 (https://utteranc.es/)
     [page.comment.utterances]
-      enable = false
+      enable = true
       # owner/repo
-      repo = ""
+      repo = "Hugo-DoIt/utterances-comments"
       issueTerm = "pathname"
       label = ""
       lightTheme = "github-light"
@@ -399,7 +399,7 @@ cacheRemoteImages = false
     # Twikoo comment config (https://twikoo.js.org/)
     # Twikoo comment 评论系统设置 (https://twikoo.js.org/)
     [page.comment.twikoo]
-      enable = true
+      enable = false
       envId = "https://twikoo-comments-doit.vercel.app/"
       region = ""
       path = ""
diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index 06f76e5af..5f852f6e5 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -22,12 +22,13 @@
     {{- /* Check theme isDark before body rendering */ -}}
     {{- $theme := .Site.Params.defaulttheme -}}
     <script type="text/javascript">
-        function setTheme(theme) {document.body.setAttribute('theme', theme); document.documentElement.style.setProperty('color-scheme', theme === 'light' ? 'light' : 'dark'); window.theme = theme; }
+        function setTheme(theme) {document.body.setAttribute('theme', theme); document.documentElement.style.setProperty('color-scheme', theme === 'light' ? 'light' : 'dark'); window.theme = theme;   window.isDark = window.theme !== 'light' }
         function saveTheme(theme) {window.localStorage && localStorage.setItem('theme', theme);}
         function getMeta(metaName) {const metas = document.getElementsByTagName('meta'); for (let i = 0; i < metas.length; i++) if (metas[i].getAttribute('name') === metaName) return metas[i]; return '';}
         if (window.localStorage && localStorage.getItem('theme')) {let theme = localStorage.getItem('theme');theme === 'light' || theme === 'dark' || theme === 'black' ? setTheme(theme) : (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches ? setTheme('dark') : setTheme('light')); } else { if ('{{ $theme }}' === 'light' || '{{ $theme }}' === 'dark' || '{{ $theme }}' === 'black') setTheme('{{ $theme }}'), saveTheme('{{ $theme }}'); else saveTheme('auto'), window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches ? setTheme('dark') : setTheme('light');}
         let metaColors = {'light': '#f8f8f8','dark': '#252627','black': '#000000'}
         getMeta('theme-color').content = metaColors[document.body.getAttribute('theme')];
+        window.switchThemeEventSet = new Set()
     </script>
     <div id="back-to-top"></div>
     <div id="mask"></div>