diff --git a/overrides/main.html b/overrides/main.html
index eba3bf6a..e7c8cffe 100644
--- a/overrides/main.html
+++ b/overrides/main.html
@@ -1,20 +1,10 @@
 {% extends "base.html" %}
 
 {% block disqus %}
-<script src="https://giscus.app/client.js" 
-        data-repo="PKUFlyingPig/cs-self-learning" 
-        data-repo-id="R_kgDOGP67ng"
-        data-category="Announcements" 
-        data-category-id="DIC_kwDOGP67ns4COM9Q" 
-        data-mapping="title"
-        data-reactions-enabled="1" 
-        data-emit-metadata="0" 
-        data-input-position="top" 
-        data-theme="light" 
-        data-lang="zh-CN"
-        data-loading="lazy" 
-        crossorigin="anonymous" 
-        async>
+<script src="https://giscus.app/client.js" data-repo="PKUFlyingPig/cs-self-learning" data-repo-id="R_kgDOGP67ng"
+    data-category="Announcements" data-category-id="DIC_kwDOGP67ns4COM9Q" data-mapping="title"
+    data-reactions-enabled="1" data-emit-metadata="0" data-input-position="top" data-theme="light" data-lang="zh-CN"
+    data-loading="lazy" crossorigin="anonymous" async>
 </script>
 
 <script>
@@ -23,7 +13,7 @@
         ref.addEventListener("change", function () {
             var palette = __get("__palette")
             if (palette && typeof palette.color === "object") {
-                const theme = palette.color.scheme === "slate" ? "dark" : "light"
+                const theme = palette.color.scheme === "slate" ? "dark_protanopia" : "light_protanopia"
                 const frame = document.querySelector(".giscus-frame")
                 frame.contentWindow.postMessage({
                     giscus: { setConfig: { theme } }