From c47316d1734714a1d5cd79dddf4f72405a15f618 Mon Sep 17 00:00:00 2001
From: weishu <twsxtd@gmail.com>
Date: Wed, 24 Dec 2025 18:42:15 +0800
Subject: [PATCH] fix: prevent flash of white background in dark mode

---
 web/index.html | 13 +++++++++++++
 1 file changed, 13 insertions(+)
diff --git a/web/index.html b/web/index.html
index dc2fcb52..2ba0d426 100644
--- a/web/index.html
+++ b/web/index.html
@@ -25,6 +25,19 @@
         <!-- Safari Pinned Tab -->
         <link rel="mask-icon" href="/mask-icon.svg" color="#111827" />
 
+        <!-- Prevent flash of white background on dark mode -->
+        <style>
+            html { background: #fff }
+            @media (prefers-color-scheme: dark) {
+                html { background: #1c1c1e; color-scheme: dark }
+            }
+        </style>
+        <script>
+            if (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) {
+                document.documentElement.setAttribute('data-theme', 'dark')
+            }
+        </script>
+
         <title>Hapi</title>
     </head>
     <body>
