fix(ui): prevent light flash on dark startup (#5637)

* fix(ui): prevent light flash on dark startup * fix(window): apply initial dark/light theme to prevent white flash * refactor(boot): optimize config fetch and theme fallback * fix: system theme detection * fix(window): remove black flash before loader by aligning initial paint with theme
2026-01-29 17:15:38 +08:00 · 2025-11-28 15:15:17 +08:00
parent 34aa26813f
commit 683667f8ae
8 changed files with 500 additions and 44 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -170,6 +170,24 @@ version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7c02d123df017efcdfbd739ef81735b36c5ba83ec3c59c80a9d7ecc718f92e50"

+[[package]]
+name = "ashpd"
+version = "0.10.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de3d60bee1a1d38c2077030f4788e1b4e31058d2e79a8cfc8f2b440bd44db290"
+dependencies = [
+ "async-fs 2.2.0",
+ "async-net 2.0.0",
+ "enumflags2",
+ "futures-channel",
+ "futures-util",
+ "rand 0.8.5",
+ "serde",
+ "serde_repr",
+ "url",
+ "zbus",
+]
+
 [[package]]
 name = "ashpd"
 version = "0.11.0"
@@ -252,6 +270,32 @@ dependencies = [
 "futures-lite 1.13.0",
 ]

+[[package]]
+name = "async-fs"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8034a681df4aed8b8edbd7fbe472401ecf009251c8b40556b304567052e294c5"
+dependencies = [
+ "async-lock 3.4.1",
+ "blocking",
+ "futures-lite 2.6.1",
+]
+
+[[package]]
+name = "async-global-executor"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05b1b633a2115cd122d73b955eadd9916c18c8f510ec9cd1686404c60ad1c29c"
+dependencies = [
+ "async-channel 2.5.0",
+ "async-executor",
+ "async-io 2.6.0",
+ "async-lock 3.4.1",
+ "blocking",
+ "futures-lite 2.6.1",
+ "once_cell",
+]
+
 [[package]]
 name = "async-io"
 version = "1.13.0"
@@ -321,6 +365,17 @@ dependencies = [
 "futures-lite 1.13.0",
 ]

+[[package]]
+name = "async-net"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b948000fad4873c1c9339d60f2623323a0cfd3816e5181033c6a5cb68b2accf7"
+dependencies = [
+ "async-io 2.6.0",
+ "blocking",
+ "futures-lite 2.6.1",
+]
+
 [[package]]
 name = "async-process"
 version = "1.8.1"
@@ -385,6 +440,32 @@ dependencies = [
 "windows-sys 0.61.2",
 ]

+[[package]]
+name = "async-std"
+version = "1.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2c8e079a4ab67ae52b7403632e4618815d6db36d2a010cfe41b02c1b1578f93b"
+dependencies = [
+ "async-channel 1.9.0",
+ "async-global-executor",
+ "async-io 2.6.0",
+ "async-lock 3.4.1",
+ "crossbeam-utils",
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-lite 2.6.1",
+ "gloo-timers",
+ "kv-log-macro",
+ "log",
+ "memchr",
+ "once_cell",
+ "pin-project-lite",
+ "pin-utils",
+ "slab",
+ "wasm-bindgen-futures",
+]
+
 [[package]]
 name = "async-stream"
 version = "0.3.6"
@@ -1124,6 +1205,7 @@ dependencies = [
 "compact_str",
 "console-subscriber",
 "criterion",
+ "dark-light",
 "deelevate",
 "delay_timer",
 "dunce",
@@ -1705,6 +1787,20 @@ dependencies = [
 "cipher",
 ]

+[[package]]
+name = "dark-light"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "18e1a09f280e29a8b00bc7e81eca5ac87dca0575639c9422a5fa25a07bb884b8"
+dependencies = [
+ "ashpd 0.10.3",
+ "async-std",
+ "objc2 0.5.2",
+ "objc2-foundation 0.2.2",
+ "web-sys",
+ "winreg 0.52.0",
+]
+
 [[package]]
 name = "darling"
 version = "0.21.3"
@@ -2977,6 +3073,18 @@ dependencies = [
 "walkdir",
 ]

+[[package]]
+name = "gloo-timers"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbb143cf96099802033e0d4f4963b19fd2e0b728bcf076cd9cf7f6634f092994"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "gobject-sys"
 version = "0.18.0"
@@ -3969,6 +4077,15 @@ dependencies = [
 "selectors",
 ]

+[[package]]
+name = "kv-log-macro"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"
+dependencies = [
+ "log",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.5.0"
@@ -4107,6 +4224,9 @@ name = "log"
 version = "0.4.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "34080505efa8e45a4b816c349525ebe327ceaa8559756f0356cba97ef3bf7432"
+dependencies = [
+ "value-bag",
+]

 [[package]]
 name = "loom"
@@ -6227,7 +6347,7 @@ version = "0.15.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ef2bee61e6cffa4635c72d7d81a84294e28f0930db0ddcb0f66d10244674ebed"
 dependencies = [
- "ashpd",
+ "ashpd 0.11.0",
 "block2 0.6.2",
 "dispatch2",
 "glib-sys",
@@ -7049,10 +7169,10 @@ checksum = "13f2b548cd8447f8de0fdf1c592929f70f4fc7039a05e47404b0d096ec6987a1"
 dependencies = [
 "async-channel 1.9.0",
 "async-executor",
- "async-fs",
+ "async-fs 1.6.0",
 "async-io 1.13.0",
 "async-lock 2.8.0",
- "async-net",
+ "async-net 1.8.0",
 "async-process 1.8.1",
 "blocking",
 "futures-lite 1.13.0",
@@ -8940,6 +9060,12 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba73ea9cf16a25df0c8caa16c51acb937d5712a8429db78a3ee29d5dcacd3a65"

+[[package]]
+name = "value-bag"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ba6f5989077681266825251a52748b8c1d8a4ad098cc37e440103d0ea717fc0"
+
 [[package]]
 name = "vcpkg"
 version = "0.2.15"
@@ -9939,6 +10065,16 @@ dependencies = [
 "winapi",
 ]

+[[package]]
+name = "winreg"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a277a57398d4bfa075df44f501a17cfdf8542d224f0d36095a2adc7aee4ef0a5"
+dependencies = [
+ "cfg-if",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "winreg"
 version = "0.55.0"
--- a/Changelog.md
+++ b/Changelog.md
@@ -21,7 +21,7 @@
 - 修复解锁测试部分地区图标编码不正确
 - 修复 IP 检测切页后强制刷新，改为仅在必要时更新
 - 修复在搜索框输入不完整正则直接崩溃
- 修复创建窗口时在非简体中文环境下的短暂闪烁
+- 修复创建窗口时在非简体中文环境或深色主题下的短暂闪烁

 <details>
 <summary><strong> ✨ 新增功能 </strong></summary>
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -99,6 +99,7 @@ clash_verge_service_ipc = { version = "2.0.21", features = [
 arc-swap = "1.7.1"
 rust-i18n = "3.1.5"
 rust_iso3166 = "0.1.14"
+dark-light = "2.0.0"

 [target.'cfg(windows)'.dependencies]
 deelevate = { workspace = true }
--- a/src-tauri/src/utils/resolve/window.rs
+++ b/src-tauri/src/utils/resolve/window.rs
@@ -1,12 +1,19 @@
-use tauri::WebviewWindow;
+use dark_light::{Mode as SystemTheme, detect as detect_system_theme};
+use tauri::utils::config::Color;
+use tauri::{Theme, WebviewWindow};

 use crate::{
    config::Config,
    core::handle,
-    utils::resolve::window_script::{INITIAL_LOADING_OVERLAY, WINDOW_INITIAL_SCRIPT},
+    utils::resolve::window_script::{INITIAL_LOADING_OVERLAY, build_window_initial_script},
 };
 use clash_verge_logging::{Type, logging_error};

+const DARK_BACKGROUND_COLOR: Color = Color(46, 48, 61, 255); // #2E303D
+const LIGHT_BACKGROUND_COLOR: Color = Color(245, 245, 245, 255); // #F5F5F5
+const DARK_BACKGROUND_HEX: &str = "#2E303D";
+const LIGHT_BACKGROUND_HEX: &str = "#F5F5F5";
+
 // 定义默认窗口尺寸常量
 const DEFAULT_WIDTH: f64 = 940.0;
 const DEFAULT_HEIGHT: f64 = 700.0;
@@ -21,8 +28,37 @@ pub async fn build_new_window() -> Result<WebviewWindow, String> {
    let config = Config::verge().await;
    let latest = config.latest_arc();
    let start_page = latest.start_page.as_deref().unwrap_or("/");
+    let initial_theme_mode = match latest.theme_mode.as_deref() {
+        Some("dark") => "dark",
+        Some("light") => "light",
+        _ => "system",
+    };

-    match tauri::WebviewWindowBuilder::new(
+    let resolved_theme = match initial_theme_mode {
+        "dark" => Some(Theme::Dark),
+        "light" => Some(Theme::Light),
+        _ => None,
+    };
+
+    let prefers_dark_background = match resolved_theme {
+        Some(Theme::Dark) => true,
+        Some(Theme::Light) => false,
+        _ => !matches!(detect_system_theme().ok(), Some(SystemTheme::Light)),
+    };
+
+    let background_color = if prefers_dark_background {
+        DARK_BACKGROUND_COLOR
+    } else {
+        LIGHT_BACKGROUND_COLOR
+    };
+
+    let initial_script = build_window_initial_script(
+        initial_theme_mode,
+        DARK_BACKGROUND_HEX,
+        LIGHT_BACKGROUND_HEX,
+    );
+
+    let mut builder = tauri::WebviewWindowBuilder::new(
        app_handle,
        "main", /* the unique window label */
        tauri::WebviewUrl::App(start_page.into()),
@@ -34,11 +70,21 @@ pub async fn build_new_window() -> Result<WebviewWindow, String> {
    .fullscreen(false)
    .inner_size(DEFAULT_WIDTH, DEFAULT_HEIGHT)
    .min_inner_size(MINIMAL_WIDTH, MINIMAL_HEIGHT)
-    .visible(true) // 立即显示窗口，避免用户等待
-    .initialization_script(WINDOW_INITIAL_SCRIPT)
-    .build()
-    {
+    .visible(false) // 等待主题色准备好后再展示，避免启动色差
+    .initialization_script(&initial_script);
+
+    if let Some(theme) = resolved_theme {
+        builder = builder.theme(Some(theme));
+    }
+
+    builder = builder.background_color(background_color);
+
+    match builder.build() {
        Ok(window) => {
+            logging_error!(
+                Type::Window,
+                window.set_background_color(Some(background_color))
+            );
            logging_error!(Type::Window, window.eval(INITIAL_LOADING_OVERLAY));
            Ok(window)
        }
--- a/src-tauri/src/utils/resolve/window_script.rs
+++ b/src-tauri/src/utils/resolve/window_script.rs
@@ -1,10 +1,121 @@
-pub const WINDOW_INITIAL_SCRIPT: &str = r#"
+pub fn build_window_initial_script(
+    initial_theme_mode: &str,
+    dark_background: &str,
+    light_background: &str,
+) -> String {
+    let theme_mode = match initial_theme_mode {
+        "dark" => "dark",
+        "light" => "light",
+        _ => "system",
+    };
+    format!(
+        r#"
+    window.__VERGE_INITIAL_THEME_MODE = "{theme_mode}";
+    window.__VERGE_INITIAL_THEME_COLORS = {{
+        darkBg: "{dark_background}",
+        lightBg: "{light_background}",
+    }};
+{script}
+"#,
+        theme_mode = theme_mode,
+        dark_background = dark_background,
+        light_background = light_background,
+        script = WINDOW_INITIAL_SCRIPT,
+    )
+}
+
+pub const WINDOW_INITIAL_SCRIPT: &str = r##"
    console.log('[Tauri] 窗口初始化脚本开始执行');

-    function createLoadingOverlay() {
+    const initialColors = (() => {
+        try {
+            const colors = window.__VERGE_INITIAL_THEME_COLORS;
+            if (colors && typeof colors === "object") {
+                const { darkBg, lightBg } = colors;
+                if (typeof darkBg === "string" && typeof lightBg === "string") {
+                    return { darkBg, lightBg };
+                }
+            }
+        } catch (error) {
+            console.warn("[Tauri] 读取初始主题颜色失败:", error);
+        }
+        return { darkBg: "#2E303D", lightBg: "#F5F5F5" };
+    })();

-        if (document.getElementById('initial-loading-overlay')) {
-            console.log('[Tauri] 加载指示器已存在');
+    const prefersDark = (() => {
+        try {
+            return !!window.matchMedia && window.matchMedia("(prefers-color-scheme: dark)")?.matches;
+        } catch (error) {
+            console.warn("[Tauri] 读取系统主题失败:", error);
+            return false;
+        }
+    })();
+
+    const initialThemeMode = typeof window.__VERGE_INITIAL_THEME_MODE === "string"
+        ? window.__VERGE_INITIAL_THEME_MODE
+        : "system";
+
+    let initialTheme = prefersDark ? "dark" : "light";
+    if (initialThemeMode === "dark") {
+        initialTheme = "dark";
+    } else if (initialThemeMode === "light") {
+        initialTheme = "light";
+    }
+
+    const applyInitialTheme = (theme) => {
+        const isDark = theme === "dark";
+        const root = document.documentElement;
+        const bgColor = isDark ? initialColors.darkBg : initialColors.lightBg;
+        const textColor = isDark ? "#ffffff" : "#333";
+        if (root) {
+            root.dataset.theme = theme;
+            root.style.setProperty("--bg-color", bgColor);
+            root.style.setProperty("--text-color", textColor);
+            root.style.colorScheme = isDark ? "dark" : "light";
+            root.style.backgroundColor = bgColor;
+            root.style.color = textColor;
+        }
+        const paintBody = () => {
+            if (!document.body) return;
+            document.body.style.backgroundColor = bgColor;
+            document.body.style.color = textColor;
+        };
+        if (document.readyState === "loading") {
+            document.addEventListener("DOMContentLoaded", paintBody, { once: true });
+        } else {
+            paintBody();
+        }
+        try {
+            localStorage.setItem("verge-theme-mode-cache", theme);
+        } catch (error) {
+            console.warn("[Tauri] 缓存主题模式失败:", error);
+        }
+        return isDark;
+    };
+
+    const isDarkTheme = applyInitialTheme(initialTheme);
+
+    const getInitialOverlayColors = () => ({
+        bg: isDarkTheme ? initialColors.darkBg : initialColors.lightBg,
+        text: isDarkTheme ? "#ffffff" : "#333",
+        spinnerTrack: isDarkTheme ? "#3a3a3a" : "#e3e3e3",
+        spinnerTop: isDarkTheme ? "#0a84ff" : "#3498db",
+    });
+
+    function createOrUpdateLoadingOverlay() {
+        const colors = getInitialOverlayColors();
+        const existed = document.getElementById('initial-loading-overlay');
+
+        const applyOverlayColors = (element) => {
+            element.style.setProperty("--bg-color", colors.bg);
+            element.style.setProperty("--text-color", colors.text);
+            element.style.setProperty("--spinner-track", colors.spinnerTrack);
+            element.style.setProperty("--spinner-top", colors.spinnerTop);
+        };
+
+        if (existed) {
+            console.log('[Tauri] 复用已有加载指示器');
+            applyOverlayColors(existed);
            return;
        }

@@ -14,7 +125,7 @@ pub const WINDOW_INITIAL_SCRIPT: &str = r#"
        loadingDiv.innerHTML = `
            <div style="
                position: fixed; top: 0; left: 0; right: 0; bottom: 0;
-                background: var(--bg-color, #f5f5f5); color: var(--text-color, #333);
+                background: var(--bg-color, ${colors.bg}); color: var(--text-color, ${colors.text});
                display: flex; flex-direction: column; align-items: center;
                justify-content: center; z-index: 9999;
                font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
@@ -22,8 +133,8 @@ pub const WINDOW_INITIAL_SCRIPT: &str = r#"
            ">
                <div style="margin-bottom: 20px;">
                    <div style="
-                        width: 40px; height: 40px; border: 3px solid #e3e3e3;
-                        border-top: 3px solid #3498db; border-radius: 50%;
+                        width: 40px; height: 40px; border: 3px solid var(--spinner-track, ${colors.spinnerTrack});
+                        border-top: 3px solid var(--spinner-top, ${colors.spinnerTop}); border-radius: 50%;
                        animation: spin 1s linear infinite;
                    "></div>
                </div>
@@ -34,12 +145,11 @@ pub const WINDOW_INITIAL_SCRIPT: &str = r#"
                    0% { transform: rotate(0deg); }
                    100% { transform: rotate(360deg); }
                }
-                @media (prefers-color-scheme: dark) {
-                    :root { --bg-color: #1a1a1a; --text-color: #ffffff; }
-                }
            </style>
        `;

+        applyOverlayColors(loadingDiv);
+
        if (document.body) {
            document.body.appendChild(loadingDiv);
        } else {
@@ -51,16 +161,16 @@ pub const WINDOW_INITIAL_SCRIPT: &str = r#"
        }
    }

-    createLoadingOverlay();
+    createOrUpdateLoadingOverlay();

    if (document.readyState === 'loading') {
-        document.addEventListener('DOMContentLoaded', createLoadingOverlay);
+        document.addEventListener('DOMContentLoaded', createOrUpdateLoadingOverlay);
    } else {
-        createLoadingOverlay();
+        createOrUpdateLoadingOverlay();
    }

    console.log('[Tauri] 窗口初始化脚本执行完成');
-"#;
+"##;

 pub const INITIAL_LOADING_OVERLAY: &str = r"
    const overlay = document.getElementById('initial-loading-overlay');
--- a/src/index.html
+++ b/src/index.html
@@ -9,8 +9,93 @@
    />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Clash Verge</title>
+    <style>
+      :root {
+        --initial-bg: #f5f5f5;
+        --initial-text: #333;
+        --initial-spinner-track: #e3e3e3;
+        --initial-spinner-top: #3498db;
+        --bg-color: var(--initial-bg);
+        --text-color: var(--initial-text);
+        --spinner-track: var(--initial-spinner-track);
+        --spinner-top: var(--initial-spinner-top);
+        color-scheme: light;
+      }
+
+      @media (prefers-color-scheme: dark) {
+        :root {
+          --initial-bg: #2e303d;
+          --initial-text: #ffffff;
+          --initial-spinner-track: #3a3a3a;
+          --initial-spinner-top: #0a84ff;
+          --bg-color: var(--initial-bg);
+          --text-color: var(--initial-text);
+          --spinner-track: var(--initial-spinner-track);
+          --spinner-top: var(--initial-spinner-top);
+          color-scheme: dark;
+        }
+      }
+
+      html,
+      body {
+        width: 100%;
+        height: 100%;
+        margin: 0;
+        background: var(--bg-color);
+        color: var(--text-color);
+      }
+
+      #root {
+        width: 100%;
+        height: 100%;
+      }
+
+      #initial-loading-overlay {
+        position: fixed;
+        inset: 0;
+        background: var(--bg-color);
+        color: var(--text-color);
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+        justify-content: center;
+        z-index: 9999;
+        font-family:
+          -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
+        transition: opacity 0.3s ease;
+      }
+
+      #initial-loading-overlay[data-hidden="true"] {
+        opacity: 0;
+        pointer-events: none;
+      }
+
+      .initial-spinner {
+        width: 40px;
+        height: 40px;
+        border: 3px solid var(--spinner-track);
+        border-top: 3px solid var(--spinner-top);
+        border-radius: 50%;
+        animation: initial-spin 1s linear infinite;
+      }
+
+      @keyframes initial-spin {
+        0% {
+          transform: rotate(0deg);
+        }
+        100% {
+          transform: rotate(360deg);
+        }
+      }
+    </style>
  </head>
  <body>
+    <div id="initial-loading-overlay">
+      <div class="initial-spinner"></div>
+      <div style="font-size: 14px; opacity: 0.7; margin-top: 20px">
+        Loading Clash Verge...
+      </div>
+    </div>
    <div id="root"></div>
    <script type="module" src="./main.tsx"></script>
  </body>
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -55,9 +55,45 @@ document.addEventListener("keydown", (event) => {
  }
 });

-const initializeApp = () => {
+let cachedVergeConfig: IVergeConfig | null = null;
+
+const detectSystemTheme = (): "light" | "dark" => {
+  if (typeof window === "undefined" || typeof window.matchMedia !== "function")
+    return "light";
+  return window.matchMedia("(prefers-color-scheme: dark)").matches
+    ? "dark"
+    : "light";
+};
+
+const getInitialThemeModeFromWindow = ():
+  | IVergeConfig["theme_mode"]
+  | undefined => {
+  if (typeof window === "undefined") return undefined;
+  const mode = (
+    window as typeof window & {
+      __VERGE_INITIAL_THEME_MODE?: unknown;
+    }
+  ).__VERGE_INITIAL_THEME_MODE;
+  if (mode === "light" || mode === "dark" || mode === "system") {
+    return mode;
+  }
+  return undefined;
+};
+
+const resolveInitialThemeMode = (
+  vergeConfig?: IVergeConfig | null,
+): "light" | "dark" => {
+  const initialMode =
+    vergeConfig?.theme_mode ?? getInitialThemeModeFromWindow();
+  if (initialMode === "dark" || initialMode === "light") {
+    return initialMode;
+  }
+  return detectSystemTheme();
+};
+
+const initializeApp = (initialThemeMode: "light" | "dark") => {
  const contexts = [
-    <ThemeModeProvider key="theme" />,
+    <ThemeModeProvider key="theme" initialState={initialThemeMode} />,
    <LoadingCacheProvider key="loading" />,
    <UpdateStateProvider key="update" />,
  ];
@@ -78,24 +114,47 @@ const initializeApp = () => {
  );
 };

-const determineInitialLanguage = async () => {
+const determineInitialLanguage = async (
+  vergeConfig?: IVergeConfig | null,
+  loadVergeConfig?: () => Promise<IVergeConfig | null>,
+) => {
  const cachedLanguage = getCachedLanguage();
  if (cachedLanguage) {
    return cachedLanguage;
  }

+  let resolvedConfig = vergeConfig;
+
+  if (resolvedConfig === undefined) {
+    if (loadVergeConfig) {
      try {
-    const vergeConfig = await getVergeConfig();
-    if (vergeConfig?.language) {
-      const resolved = resolveLanguage(vergeConfig.language);
-      cacheLanguage(resolved);
-      return resolved;
-    }
+        resolvedConfig = await loadVergeConfig();
      } catch (error) {
        console.warn(
          "[main.tsx] Failed to read language from Verge config:",
          error,
        );
+        resolvedConfig = null;
+      }
+    } else {
+      try {
+        resolvedConfig = await getVergeConfig();
+        cachedVergeConfig = resolvedConfig;
+      } catch (error) {
+        console.warn(
+          "[main.tsx] Failed to read language from Verge config:",
+          error,
+        );
+        resolvedConfig = null;
+      }
+    }
+  }
+
+  const languageFromConfig = resolvedConfig?.language;
+  if (languageFromConfig) {
+    const resolved = resolveLanguage(languageFromConfig);
+    cacheLanguage(resolved);
+    return resolved;
  }

  const browserLanguage = resolveLanguage(
@@ -105,10 +164,29 @@ const determineInitialLanguage = async () => {
  return browserLanguage;
 };

+const fetchVergeConfig = async () => {
+  try {
+    const config = await getVergeConfig();
+    cachedVergeConfig = config;
+    return config;
+  } catch (error) {
+    console.warn("[main.tsx] Failed to read Verge config:", error);
+    return null;
+  }
+};
+
 const bootstrap = async () => {
-  const initialLanguage = await determineInitialLanguage();
-  await initializeLanguage(initialLanguage);
-  initializeApp();
+  const vergeConfigPromise = fetchVergeConfig();
+  const initialLanguage = await determineInitialLanguage(
+    undefined,
+    () => vergeConfigPromise,
+  );
+  const [vergeConfig] = await Promise.all([
+    vergeConfigPromise,
+    initializeLanguage(initialLanguage),
+  ]);
+  const initialThemeMode = resolveInitialThemeMode(vergeConfig);
+  initializeApp(initialThemeMode);
 };

 bootstrap().catch((error) => {
@@ -124,7 +202,7 @@ bootstrap().catch((error) => {
      );
    })
    .finally(() => {
-      initializeApp();
+      initializeApp(resolveInitialThemeMode(cachedVergeConfig));
    });
 });

--- a/src/services/states.ts
+++ b/src/services/states.ts
@@ -4,7 +4,7 @@ import { LogLevel } from "tauri-plugin-mihomo-api";

 const [ThemeModeProvider, useThemeMode, useSetThemeMode] = createContextState<
  "light" | "dark"
->("light");
+>();

 export type LogFilter = "all" | "debug" | "info" | "warn" | "err";
 export type LogOrder = "asc" | "desc";