diff --git a/Gmeek.py b/Gmeek.py
index f3fb96f..777f8e6 100644
--- a/Gmeek.py
+++ b/Gmeek.py
@@ -71,7 +71,7 @@ class GMEEK():
         os.mkdir(self.post_dir)
 
     def defaultConfig(self):
-        dconfig={"singlePage":[],"startSite":"","filingNum":"","onePageListNum":15,"commentLabelColor":"#006b75","yearColorList":["#bc4c00", "#0969da", "#1f883d", "#A333D0"],"i18n":"CN","dayTheme":"light","nightTheme":"dark","urlMode":"pinyin","script":"","style":"","bottomText":"","showPostSource":1,"iconList":{},"UTC":+8,"rssSplit":"sentence"}
+        dconfig={"singlePage":[],"startSite":"","filingNum":"","onePageListNum":15,"commentLabelColor":"#006b75","yearColorList":["#bc4c00", "#0969da", "#1f883d", "#A333D0"],"i18n":"CN","themeMode":"manual","dayTheme":"light","nightTheme":"dark","urlMode":"pinyin","script":"","style":"","bottomText":"","showPostSource":1,"iconList":{},"UTC":+8,"rssSplit":"sentence"}
         config=json.loads(open('config.json', 'r', encoding='utf-8').read())
         self.blogBase={**dconfig,**config}.copy()
         self.blogBase["postListJson"]=json.loads('{}')
diff --git a/templates/base.html b/templates/base.html
index 400c214..b7eff30 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -1,16 +1,18 @@
 <!DOCTYPE html>
-<html data-color-mode="light" data-dark-theme="{{ blogBase['nightTheme'] }}" data-light-theme="{{ blogBase['dayTheme'] }}" lang={% if blogBase['i18n']=='CN' %}"zh-CN"{% elif blogBase['i18n']=='RU' %}"ru"{% else -%}"en"{%- endif -%}>
+<html {%- if blogBase['themeMode']=='auto' -%}data-color-mode="auto"{%- else -%}data-color-mode="light"{%- endif -%} data-dark-theme="{{ blogBase['nightTheme'] }}" data-light-theme="{{ blogBase['dayTheme'] }}" lang={% if blogBase['i18n']=='CN' %}"zh-CN"{% elif blogBase['i18n']=='RU' %}"ru"{% else -%}"en"{%- endif -%}>
 <head>
     <meta content="text/html; charset=utf-8" http-equiv="content-type" />
     <meta name="viewport" content="width=device-width,initial-scale=1.0">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <link href="//cdn.staticfile.net/Primer/21.0.7/primer.css" rel="stylesheet" />
     <link rel="icon" href="{{ blogBase['faviconUrl'] }}">
+    {%- if blogBase['themeMode']=='manual' -%}
     <script>
         if(localStorage.getItem("meek_theme")==null){}
         else if(localStorage.getItem("meek_theme")=="dark"){document.getElementsByTagName("html")[0].attributes.getNamedItem("data-color-mode").value="dark";}
         else if(localStorage.getItem("meek_theme")=="light"){document.getElementsByTagName("html")[0].attributes.getNamedItem("data-color-mode").value="light";}
     </script>
+    {%- endif -%}
     {% block head %}{% endblock %}
 </head>
 <style>
@@ -29,6 +31,7 @@ body{box-sizing: border-box;min-width: 200px;max-width: 900px;margin: 20px auto;
 <script>
 var IconList={{ IconList }};
 var utterancesLoad=0;
+{%- if blogBase['themeMode']=='manual' -%}
 if(localStorage.getItem("meek_theme")==null){localStorage.setItem("meek_theme","light");changeLight();}
 else if(localStorage.getItem("meek_theme")=="dark"){changeDark();}
 else if(localStorage.getItem("meek_theme")=="light"){changeLight();}
@@ -49,11 +52,13 @@ function modeSwitch(){
     if(document.getElementsByTagName("html")[0].attributes[0].value=="light"){changeDark();localStorage.setItem("meek_theme","dark");}
     else{changeLight();localStorage.setItem("meek_theme","light");}
 }
+
 function utterancesTheme(theme){
     const message = {type: 'set-theme',theme: theme};
     const iframe = document.getElementsByClassName('utterances-frame')[0];
     iframe.contentWindow.postMessage(message, 'https://utteranc.es');
 }
+{%- endif -%}
 
 console.log("\n %c Gmeek {{ blogBase['GMEEK_VERSION'] }} %c https://github.com/Meekdai/Gmeek \n\n", "color: #fff; background-image: linear-gradient(90deg, rgb(47, 172, 178) 0%, rgb(45, 190, 96) 100%); padding:5px 1px;", "background-image: linear-gradient(90deg, rgb(45, 190, 96) 0%, rgb(255, 255, 255) 100%); padding:5px 0;");
 </script>
diff --git a/templates/plist.html b/templates/plist.html
index b4c4ddf..39a19fb 100644
--- a/templates/plist.html
+++ b/templates/plist.html
@@ -58,7 +58,7 @@
             <path id="pathRSS" fill-rule="evenodd"></path>
         </svg>
     </button></a>
-    <button class="btn btn-invisible circle" onclick="modeSwitch()" title="{{ i18n['switchTheme'] }}">
+    <button class="btn btn-invisible circle" onclick="modeSwitch()" title="{{ i18n['switchTheme'] }}" {%- if blogBase['themeMode']!='manual' -%}style="display:none;"{%- endif -%}>
         <svg class="octicon" width="16" height="16" >
             <path id="themeSwitch" fill-rule="evenodd"></path>
         </svg>
diff --git a/templates/post.html b/templates/post.html
index 326a7da..8ab5f8d 100644
--- a/templates/post.html
+++ b/templates/post.html
@@ -42,7 +42,7 @@
     </button></a>
     {% endif %}
 
-    <button class="btn btn-invisible circle" onclick="modeSwitch();" title="{{ i18n['switchTheme'] }}">
+    <button class="btn btn-invisible circle" onclick="modeSwitch();" title="{{ i18n['switchTheme'] }}" {%- if blogBase['themeMode']!='manual' -%}style="display:none;"{%- endif -%}>
         <svg class="octicon" width="16" height="16" >
             <path id="themeSwitch" fill-rule="evenodd"></path>
         </svg>
@@ -82,8 +82,14 @@ function openComments(){
     script.setAttribute("src","https://utteranc.es/client.js");
     script.setAttribute("repo","{{ blogBase['repoName'] }}");
     script.setAttribute("issue-term","title");
+    {%- if blogBase['themeMode']=='manual' -%}
     if(localStorage.getItem("meek_theme")=="dark"){script.setAttribute("theme","dark-blue");}
     else{script.setAttribute("theme","github-light");}
+    {%- elif blogBase['themeMode']=='fix' -%}
+    script.setAttribute("theme","{{ blogBase['nightTheme'] }}");
+    {%- else -%}
+    script.setAttribute("theme","preferred-color-scheme");
+    {%- endif -%}
     script.setAttribute("crossorigin","anonymous");
     script.setAttribute("async","");
     cm.appendChild(script);
@@ -102,7 +108,6 @@ function iFrameLoading(){
         }
     }
 }
-
 </script>
 
 {% endblock %}
diff --git a/templates/tag.html b/templates/tag.html
index bcf102b..e678281 100644
--- a/templates/tag.html
+++ b/templates/tag.html
@@ -44,7 +44,7 @@
             <path id="pathHome" fill-rule="evenodd"></path>
         </svg>
     </button></a>
-    <button class="btn btn-invisible circle" onclick="modeSwitch()" title="{{ i18n['switchTheme'] }}">
+    <button class="btn btn-invisible circle" onclick="modeSwitch()" title="{{ i18n['switchTheme'] }}" {%- if blogBase['themeMode']!='manual' -%}style="display:none;"{%- endif -%}>
         <svg class="octicon" width="16" height="16" >
             <path id="themeSwitch" fill-rule="evenodd"></path>
         </svg>
