diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameDownloadTask.java b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameDownloadTask.java
index 33935476b..18e31d4ad 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameDownloadTask.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameDownloadTask.java
@@ -33,7 +33,7 @@ import java.util.List;
 import java.util.Optional;
 import java.util.logging.Level;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
 /**
  * @author huangyuhui
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java
index c2a3717c9..8155fff0f 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java
@@ -34,7 +34,7 @@ import java.io.IOException;
 import java.util.*;
 import java.util.logging.Level;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
 public class HMCLGameRepository extends DefaultGameRepository {
     private final Profile profile;
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/setting/Accounts.java b/HMCL/src/main/java/org/jackhuang/hmcl/setting/Accounts.java
index 17e6a6551..44a58ce80 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/setting/Accounts.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/setting/Accounts.java
@@ -44,7 +44,7 @@ import java.util.logging.Level;
 
 import static java.util.stream.Collectors.toList;
 import static javafx.collections.FXCollections.observableArrayList;
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 import static org.jackhuang.hmcl.ui.FXUtils.onInvalidating;
 import static org.jackhuang.hmcl.util.Lang.mapOf;
 import static org.jackhuang.hmcl.util.Logging.LOG;
@@ -125,7 +125,7 @@ public final class Accounts {
             // selection is valid, store it
             if (!initialized)
                 return;
-            CONFIG.setSelectedAccount(selected == null ? "" : accountId(selected));
+            config().setSelectedAccount(selected == null ? "" : accountId(selected));
         }
     };
 
@@ -144,7 +144,7 @@ public final class Accounts {
         if (!initialized)
             return;
         // update storage
-        CONFIG.getAccountStorages().setAll(
+        config().getAccountStorages().setAll(
                 accounts.stream()
                         .map(account -> {
                             Map<Object, Object> storage = account.toStorage();
@@ -155,14 +155,14 @@ public final class Accounts {
     }
 
     /**
-     * Called when it's ready to load accounts from {@link ConfigHolder#CONFIG}.
+     * Called when it's ready to load accounts from {@link ConfigHolder#config()}.
      */
     static void init() {
         if (initialized)
             throw new IllegalStateException("Already initialized");
 
         // load accounts
-        CONFIG.getAccountStorages().forEach(storage -> {
+        config().getAccountStorages().forEach(storage -> {
             AccountFactory<?> factory = type2factory.get(storage.get("type"));
             if (factory == null) {
                 LOG.warning("Unrecognized account type: " + storage);
@@ -180,12 +180,12 @@ public final class Accounts {
 
         initialized = true;
 
-        CONFIG.getAuthlibInjectorServers().addListener(onInvalidating(Accounts::removeDanglingAuthlibInjectorAccounts));
+        config().getAuthlibInjectorServers().addListener(onInvalidating(Accounts::removeDanglingAuthlibInjectorAccounts));
 
         // load selected account
         selectedAccount.set(
                 accounts.stream()
-                        .filter(it -> accountId(it).equals(CONFIG.getSelectedAccount()))
+                        .filter(it -> accountId(it).equals(config().getSelectedAccount()))
                         .findFirst()
                         .orElse(null));
     }
@@ -212,7 +212,7 @@ public final class Accounts {
 
     // ==== authlib-injector ====
     private static AuthlibInjectorServer getOrCreateAuthlibInjectorServer(String url) {
-        return CONFIG.getAuthlibInjectorServers().stream()
+        return config().getAuthlibInjectorServers().stream()
                 .filter(server -> url.equals(server.getUrl()))
                 .findFirst()
                 .orElseGet(() -> {
@@ -226,7 +226,7 @@ public final class Accounts {
                         LOG.log(Level.WARNING, "Failed to migrate authlib injector server " + url, e);
                     }
 
-                    CONFIG.getAuthlibInjectorServers().add(server);
+                    config().getAuthlibInjectorServers().add(server);
                     return server;
                 });
     }
@@ -239,7 +239,7 @@ public final class Accounts {
         accounts.stream()
                 .filter(AuthlibInjectorAccount.class::isInstance)
                 .map(AuthlibInjectorAccount.class::cast)
-                .filter(it -> !CONFIG.getAuthlibInjectorServers().contains(it.getServer()))
+                .filter(it -> !config().getAuthlibInjectorServers().contains(it.getServer()))
                 .collect(toList())
                 .forEach(accounts::remove);
     }
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/setting/ConfigHolder.java b/HMCL/src/main/java/org/jackhuang/hmcl/setting/ConfigHolder.java
index 59e199874..5837af89d 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/setting/ConfigHolder.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/setting/ConfigHolder.java
@@ -36,7 +36,14 @@ public final class ConfigHolder {
 
     public static final String CONFIG_FILENAME = "hmcl.json";
     public static final Path CONFIG_PATH = Paths.get(CONFIG_FILENAME).toAbsolutePath();
-    public static final Config CONFIG = initSettings();
+    private static Config configInstance = initSettings();
+
+    public static Config config() {
+        if (configInstance == null) {
+            throw new IllegalStateException("Configuration hasn't been loaded");
+        }
+        return configInstance;
+    }
 
     private static Config upgradeSettings(Config deserialized, Map<?, ?> rawJson) {
         if (!rawJson.containsKey("commonDirType"))
@@ -67,7 +74,7 @@ public final class ConfigHolder {
     static void saveConfig() {
         LOG.info("Saving config");
         try {
-            Files.write(CONFIG_PATH, CONFIG.toJson().getBytes(UTF_8));
+            Files.write(CONFIG_PATH, configInstance.toJson().getBytes(UTF_8));
         } catch (IOException ex) {
             LOG.log(Level.SEVERE, "Failed to save config", ex);
         }
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/setting/ProxyManager.java b/HMCL/src/main/java/org/jackhuang/hmcl/setting/ProxyManager.java
index b856bd4ca..0cababf5f 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/setting/ProxyManager.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/setting/ProxyManager.java
@@ -17,7 +17,7 @@
  */
 package org.jackhuang.hmcl.setting;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
 import java.net.Authenticator;
 import java.net.InetSocketAddress;
@@ -38,18 +38,18 @@ public final class ProxyManager {
 
     private static ObjectBinding<Proxy> proxyProperty = Bindings.createObjectBinding(
             () -> {
-                String host = CONFIG.getProxyHost();
-                Integer port = Lang.toIntOrNull(CONFIG.getProxyPort());
-                if (!CONFIG.hasProxy() || StringUtils.isBlank(host) || port == null || CONFIG.getProxyType() == Proxy.Type.DIRECT) {
+                String host = config().getProxyHost();
+                Integer port = Lang.toIntOrNull(config().getProxyPort());
+                if (!config().hasProxy() || StringUtils.isBlank(host) || port == null || config().getProxyType() == Proxy.Type.DIRECT) {
                     return Proxy.NO_PROXY;
                 } else {
-                    return new Proxy(CONFIG.getProxyType(), new InetSocketAddress(host, port));
+                    return new Proxy(config().getProxyType(), new InetSocketAddress(host, port));
                 }
             },
-            CONFIG.proxyTypeProperty(),
-            CONFIG.proxyHostProperty(),
-            CONFIG.proxyPortProperty(),
-            CONFIG.hasProxyProperty());
+            config().proxyTypeProperty(),
+            config().proxyHostProperty(),
+            config().proxyPortProperty(),
+            config().hasProxyProperty());
 
     public static Proxy getProxy() {
         return proxyProperty.get();
@@ -68,9 +68,9 @@ public final class ProxyManager {
 
             @Override
             protected PasswordAuthentication getPasswordAuthentication() {
-                if (CONFIG.hasProxyAuth()) {
-                    String username = CONFIG.getProxyUser();
-                    String password = CONFIG.getProxyPass();
+                if (config().hasProxyAuth()) {
+                    String username = config().getProxyUser();
+                    String password = config().getProxyPass();
                     if (username != null && password != null) {
                         return new PasswordAuthentication(username, password.toCharArray());
                     }
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/setting/Settings.java b/HMCL/src/main/java/org/jackhuang/hmcl/setting/Settings.java
index c6130c656..d79581ddc 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/setting/Settings.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/setting/Settings.java
@@ -30,7 +30,7 @@ import org.jackhuang.hmcl.util.i18n.Locales;
 import java.util.*;
 import java.util.stream.Collectors;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
 public class Settings {
 
@@ -39,7 +39,7 @@ public class Settings {
     private final boolean firstLaunch;
 
     private Settings() {
-        firstLaunch = CONFIG.isFirstLaunch();
+        firstLaunch = config().isFirstLaunch();
 
         ProxyManager.init();
         Accounts.init();
@@ -52,15 +52,15 @@ public class Settings {
             profileEntry.getValue().addPropertyChangedListener(e -> ConfigHolder.saveConfig());
         }
 
-        CONFIG.addListener(source -> ConfigHolder.saveConfig());
-        CONFIG.setFirstLaunch(false);
+        config().addListener(source -> ConfigHolder.saveConfig());
+        config().setFirstLaunch(false);
     }
 
     public boolean isFirstLaunch() {
         return firstLaunch;
     }
 
-    private Locales.SupportedLocale locale = Locales.getLocaleByName(CONFIG.getLocalization());
+    private Locales.SupportedLocale locale = Locales.getLocaleByName(config().getLocalization());
 
     public Locales.SupportedLocale getLocale() {
         return locale;
@@ -68,28 +68,28 @@ public class Settings {
 
     public void setLocale(Locales.SupportedLocale locale) {
         this.locale = locale;
-        CONFIG.setLocalization(Locales.getNameByLocale(locale));
+        config().setLocalization(Locales.getNameByLocale(locale));
     }
 
     public Font getFont() {
-        return Font.font(CONFIG.getFontFamily(), CONFIG.getFontSize());
+        return Font.font(config().getFontFamily(), config().getFontSize());
     }
 
     public void setFont(Font font) {
-        CONFIG.setFontFamily(font.getFamily());
-        CONFIG.setFontSize(font.getSize());
+        config().setFontFamily(font.getFamily());
+        config().setFontSize(font.getSize());
     }
 
     public int getLogLines() {
-        return Math.max(CONFIG.getLogLines(), 100);
+        return Math.max(config().getLogLines(), 100);
     }
 
     public void setLogLines(int logLines) {
-        CONFIG.setLogLines(logLines);
+        config().setLogLines(logLines);
     }
 
     public boolean isCommonDirectoryDisabled() {
-        return CONFIG.getCommonDirType() == EnumCommonDirectory.DISABLED;
+        return config().getCommonDirType() == EnumCommonDirectory.DISABLED;
     }
 
     public static String getDefaultCommonDirectory() {
@@ -97,13 +97,13 @@ public class Settings {
     }
 
     public String getCommonDirectory() {
-        switch (CONFIG.getCommonDirType()) {
+        switch (config().getCommonDirType()) {
             case DISABLED:
                 return null;
             case DEFAULT:
                 return getDefaultCommonDirectory();
             case CUSTOM:
-                return CONFIG.getCommonDirectory();
+                return config().getCommonDirectory();
             default:
                 return null;
         }
@@ -114,14 +114,14 @@ public class Settings {
      ****************************************/
 
     public DownloadProvider getDownloadProvider() {
-        return DownloadProviders.getDownloadProvider(CONFIG.getDownloadType());
+        return DownloadProviders.getDownloadProvider(config().getDownloadType());
     }
 
     public void setDownloadProvider(DownloadProvider downloadProvider) {
         int index = DownloadProviders.DOWNLOAD_PROVIDERS.indexOf(downloadProvider);
         if (index == -1)
             throw new IllegalArgumentException("Unknown download provider: " + downloadProvider);
-        CONFIG.setDownloadType(index);
+        config().setDownloadType(index);
     }
 
     /****************************************
@@ -131,18 +131,18 @@ public class Settings {
     public Profile getSelectedProfile() {
         checkProfileMap();
 
-        if (!hasProfile(CONFIG.getSelectedProfile())) {
+        if (!hasProfile(config().getSelectedProfile())) {
             getProfileMap().keySet().stream().findFirst().ifPresent(selectedProfile -> {
-                CONFIG.setSelectedProfile(selectedProfile);
+                config().setSelectedProfile(selectedProfile);
             });
             Schedulers.computation().schedule(this::onProfileChanged);
         }
-        return getProfile(CONFIG.getSelectedProfile());
+        return getProfile(config().getSelectedProfile());
     }
 
     public void setSelectedProfile(Profile selectedProfile) {
-        if (hasProfile(selectedProfile.getName()) && !Objects.equals(selectedProfile.getName(), CONFIG.getSelectedProfile())) {
-            CONFIG.setSelectedProfile(selectedProfile.getName());
+        if (hasProfile(selectedProfile.getName()) && !Objects.equals(selectedProfile.getName(), config().getSelectedProfile())) {
+            config().setSelectedProfile(selectedProfile.getName());
             Schedulers.computation().schedule(this::onProfileChanged);
         }
     }
@@ -159,7 +159,7 @@ public class Settings {
     }
 
     public Map<String, Profile> getProfileMap() {
-        return CONFIG.getConfigurations();
+        return config().getConfigurations();
     }
 
     public Collection<Profile> getProfiles() {
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/setting/Theme.java b/HMCL/src/main/java/org/jackhuang/hmcl/setting/Theme.java
index d3ee6ba6d..5aea647a6 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/setting/Theme.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/setting/Theme.java
@@ -27,7 +27,7 @@ import org.jackhuang.hmcl.util.Logging;
 import com.google.gson.stream.JsonReader;
 import com.google.gson.stream.JsonWriter;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
 import java.io.File;
 import java.io.IOException;
@@ -120,7 +120,7 @@ public class Theme {
     }
 
     public static ObjectBinding<Color> foregroundFillBinding() {
-        return Bindings.createObjectBinding(() -> CONFIG.getTheme().getForegroundColor(), CONFIG.themeProperty());
+        return Bindings.createObjectBinding(() -> config().getTheme().getForegroundColor(), config().themeProperty());
     }
 
     public static ObjectBinding<Color> blackFillBinding() {
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/setting/VersionSetting.java b/HMCL/src/main/java/org/jackhuang/hmcl/setting/VersionSetting.java
index 761dce2bf..061639a6e 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/setting/VersionSetting.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/setting/VersionSetting.java
@@ -30,7 +30,7 @@ import java.util.List;
 import java.util.Optional;
 import java.util.stream.Collectors;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
 /**
  *
@@ -515,10 +515,10 @@ public final class VersionSetting {
                 .setFullscreen(isFullscreen())
                 .setServerIp(getServerIp())
                 .setWrapper(getWrapper())
-                .setProxyHost(CONFIG.getProxyHost())
-                .setProxyPort(CONFIG.getProxyPort())
-                .setProxyUser(CONFIG.getProxyUser())
-                .setProxyPass(CONFIG.getProxyPass())
+                .setProxyHost(config().getProxyHost())
+                .setProxyPort(config().getProxyPort())
+                .setProxyUser(config().getProxyUser())
+                .setProxyPass(config().getProxyPass())
                 .setPrecalledCommand(getPreLaunchCommand())
                 .setNoGeneratedJVMArgs(isNoJVMArgs())
                 .create();
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/AddAccountPane.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/AddAccountPane.java
index c6f4775bf..ab2bbf599 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/AddAccountPane.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/AddAccountPane.java
@@ -54,7 +54,7 @@ import java.util.concurrent.CountDownLatch;
 import java.util.logging.Level;
 
 import static java.util.Objects.requireNonNull;
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 import static org.jackhuang.hmcl.ui.FXUtils.jfxListCellFactory;
 import static org.jackhuang.hmcl.ui.FXUtils.onInvalidating;
 import static org.jackhuang.hmcl.ui.FXUtils.stringConverter;
@@ -79,7 +79,7 @@ public class AddAccountPane extends StackPane {
 
         cboServers.setCellFactory(jfxListCellFactory(server -> new TwoLineListItem(server.getName(), server.getUrl())));
         cboServers.setConverter(stringConverter(AuthlibInjectorServer::getName));
-        Bindings.bindContent(cboServers.getItems(), CONFIG.getAuthlibInjectorServers());
+        Bindings.bindContent(cboServers.getItems(), config().getAuthlibInjectorServers());
         cboServers.getItems().addListener(onInvalidating(this::selectDefaultServer));
         selectDefaultServer();
 
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/AddAuthlibInjectorServerPane.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/AddAuthlibInjectorServerPane.java
index 2fbf48b94..61dd9d52d 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/AddAuthlibInjectorServerPane.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/AddAuthlibInjectorServerPane.java
@@ -39,7 +39,7 @@ import javafx.fxml.FXML;
 import javafx.scene.control.Label;
 import javafx.scene.layout.StackPane;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
 public class AddAuthlibInjectorServerPane extends StackPane {
 
@@ -133,8 +133,8 @@ public class AddAuthlibInjectorServerPane extends StackPane {
 
     @FXML
     private void onAddFinish() {
-        if (!CONFIG.getAuthlibInjectorServers().contains(serverBeingAdded)) {
-            CONFIG.getAuthlibInjectorServers().add(serverBeingAdded);
+        if (!config().getAuthlibInjectorServers().contains(serverBeingAdded)) {
+            config().getAuthlibInjectorServers().add(serverBeingAdded);
         }
         fireEvent(new DialogCloseEvent());
     }
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/AuthlibInjectorServersPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/AuthlibInjectorServersPage.java
index 96efa7727..02e02ad30 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/AuthlibInjectorServersPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/AuthlibInjectorServersPage.java
@@ -34,7 +34,7 @@ import javafx.scene.control.ScrollPane;
 import javafx.scene.layout.StackPane;
 import javafx.scene.layout.VBox;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
 public class AuthlibInjectorServersPage extends StackPane implements DecoratorPage {
     private final StringProperty title = new SimpleStringProperty(this, "title", i18n("account.injector.manage.title"));
@@ -49,13 +49,13 @@ public class AuthlibInjectorServersPage extends StackPane implements DecoratorPa
         loadFXML(this, "/assets/fxml/authlib-injector-servers.fxml");
         smoothScrolling(scrollPane);
 
-        serverItems = MappedObservableList.create(CONFIG.getAuthlibInjectorServers(), this::createServerItem);
+        serverItems = MappedObservableList.create(config().getAuthlibInjectorServers(), this::createServerItem);
         Bindings.bindContent(listPane.getChildren(), serverItems);
     }
 
     private AuthlibInjectorServerItem createServerItem(AuthlibInjectorServer server) {
         return new AuthlibInjectorServerItem(server,
-                item -> CONFIG.getAuthlibInjectorServers().remove(item.getServer()));
+                item -> config().getAuthlibInjectorServers().remove(item.getServer()));
     }
 
     @FXML
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java
index e2abc47d5..63495c4b0 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/Controllers.java
@@ -34,7 +34,7 @@ import org.jackhuang.hmcl.ui.construct.TaskExecutorDialogPane;
 import org.jackhuang.hmcl.util.FutureCallback;
 import org.jackhuang.hmcl.util.JavaVersion;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
 import java.util.function.Consumer;
 
@@ -108,7 +108,7 @@ public final class Controllers {
         decorator.setCustomMaximize(false);
 
         scene = new Scene(decorator, 804, 521);
-        scene.getStylesheets().setAll(CONFIG.getTheme().getStylesheets());
+        scene.getStylesheets().setAll(config().getTheme().getStylesheets());
         stage.setMinWidth(804);
         stage.setMaxWidth(804);
         stage.setMinHeight(521);
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/Decorator.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/Decorator.java
index 5acc657cc..c2bbb588e 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/Decorator.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/Decorator.java
@@ -81,7 +81,7 @@ import java.util.concurrent.ConcurrentLinkedQueue;
 import java.util.logging.Level;
 
 import static java.util.stream.Collectors.toList;
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 import static org.jackhuang.hmcl.util.Logging.LOG;
 
 public final class Decorator extends StackPane implements TaskExecutorDialogWizardDisplayer {
@@ -228,8 +228,8 @@ public final class Decorator extends StackPane implements TaskExecutorDialogWiza
                 Bindings.createObjectBinding(
                         () -> {
                             Image image = null;
-                            if (CONFIG.getBackgroundImageType() == EnumBackgroundImage.CUSTOM && CONFIG.getBackgroundImage() != null) {
-                                image = tryLoadImage(Paths.get(CONFIG.getBackgroundImage()))
+                            if (config().getBackgroundImageType() == EnumBackgroundImage.CUSTOM && config().getBackgroundImage() != null) {
+                                image = tryLoadImage(Paths.get(config().getBackgroundImage()))
                                         .orElse(null);
                             }
                             if (image == null) {
@@ -237,8 +237,8 @@ public final class Decorator extends StackPane implements TaskExecutorDialogWiza
                             }
                             return new Background(new BackgroundImage(image, BackgroundRepeat.NO_REPEAT, BackgroundRepeat.NO_REPEAT, BackgroundPosition.DEFAULT, new BackgroundSize(800, 480, false, false, true, true)));
                         },
-                        CONFIG.backgroundImageTypeProperty(),
-                        CONFIG.backgroundImageProperty()));
+                        config().backgroundImageTypeProperty(),
+                        config().backgroundImageProperty()));
     }
 
     private Image defaultBackground = new Image("/assets/img/background.jpg");
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/LogWindow.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/LogWindow.java
index 4cc24c1b2..f7925e0d0 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/LogWindow.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/LogWindow.java
@@ -43,7 +43,7 @@ import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
 
 import java.util.concurrent.CountDownLatch;
@@ -65,7 +65,7 @@ public final class LogWindow extends Stage {
 
     public LogWindow() {
         setScene(new Scene(impl, 800, 480));
-        getScene().getStylesheets().addAll(CONFIG.getTheme().getStylesheets());
+        getScene().getStylesheets().addAll(config().getTheme().getStylesheets());
         setTitle(i18n("logwindow.title"));
         getIcons().add(new Image("/assets/img/icon.png"));
     }
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/SettingsPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/SettingsPage.java
index 8ff2a3d94..b87710ca9 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/SettingsPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/SettingsPage.java
@@ -47,7 +47,7 @@ import org.jackhuang.hmcl.ui.wizard.DecoratorPage;
 import org.jackhuang.hmcl.util.Lang;
 import org.jackhuang.hmcl.util.i18n.Locales;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
 
 import java.net.Proxy;
@@ -142,16 +142,16 @@ public final class SettingsPage extends StackPane implements DecoratorPage {
         cboLanguage.getSelectionModel().selectedIndexProperty().addListener((a, b, newValue) -> Settings.INSTANCE.setLocale(Locales.getLocale(newValue.intValue())));
 
         // ==== Proxy ====
-        txtProxyHost.textProperty().bindBidirectional(CONFIG.proxyHostProperty());
-        txtProxyPort.textProperty().bindBidirectional(CONFIG.proxyPortProperty());
-        txtProxyUsername.textProperty().bindBidirectional(CONFIG.proxyUserProperty());
-        txtProxyPassword.textProperty().bindBidirectional(CONFIG.proxyPassProperty());
+        txtProxyHost.textProperty().bindBidirectional(config().proxyHostProperty());
+        txtProxyPort.textProperty().bindBidirectional(config().proxyPortProperty());
+        txtProxyUsername.textProperty().bindBidirectional(config().proxyUserProperty());
+        txtProxyPassword.textProperty().bindBidirectional(config().proxyPassProperty());
 
         proxyPane.disableProperty().bind(chkEnableProxy.selectedProperty().not());
         authPane.disableProperty().bind(chkProxyAuthentication.selectedProperty().not());
 
-        chkEnableProxy.selectedProperty().bindBidirectional(CONFIG.hasProxyProperty());
-        chkProxyAuthentication.selectedProperty().bindBidirectional(CONFIG.hasProxyAuthProperty());
+        chkEnableProxy.selectedProperty().bindBidirectional(config().hasProxyProperty());
+        chkProxyAuthentication.selectedProperty().bindBidirectional(config().hasProxyAuthProperty());
 
         selectedProxyType = new SimpleObjectProperty<Proxy.Type>(Proxy.Type.HTTP) {
             {
@@ -169,7 +169,7 @@ public final class SettingsPage extends StackPane implements DecoratorPage {
                 }
             }
         };
-        selectedProxyType.bindBidirectional(CONFIG.proxyTypeProperty());
+        selectedProxyType.bindBidirectional(config().proxyTypeProperty());
 
         ToggleGroup proxyConfigurationGroup = new ToggleGroup();
         chkProxyHttp.setUserData(Proxy.Type.HTTP);
@@ -188,12 +188,12 @@ public final class SettingsPage extends StackPane implements DecoratorPage {
                 fileCommonLocation.createChildren(i18n("launcher.common_directory.disabled"), EnumCommonDirectory.DISABLED),
                 fileCommonLocation.createChildren(i18n("launcher.common_directory.default"), EnumCommonDirectory.DEFAULT)
         ), EnumCommonDirectory.CUSTOM);
-        fileCommonLocation.selectedDataProperty().bindBidirectional(CONFIG.commonDirTypeProperty());
-        fileCommonLocation.customTextProperty().bindBidirectional(CONFIG.commonDirectoryProperty());
+        fileCommonLocation.selectedDataProperty().bindBidirectional(config().commonDirTypeProperty());
+        fileCommonLocation.customTextProperty().bindBidirectional(config().commonDirectoryProperty());
         fileCommonLocation.subtitleProperty().bind(
                 Bindings.createObjectBinding(() -> Optional.ofNullable(Settings.INSTANCE.getCommonDirectory())
                                 .orElse(i18n("launcher.common_directory.disabled")),
-                        CONFIG.commonDirectoryProperty(), CONFIG.commonDirTypeProperty()));
+                        config().commonDirectoryProperty(), config().commonDirTypeProperty()));
 
         FXUtils.installTooltip(btnUpdate, i18n("update.tooltip"));
         checkUpdate();
@@ -202,22 +202,22 @@ public final class SettingsPage extends StackPane implements DecoratorPage {
         backgroundItem.loadChildren(Collections.singletonList(
                 backgroundItem.createChildren(i18n("launcher.background.default"), EnumBackgroundImage.DEFAULT)
         ), EnumBackgroundImage.CUSTOM);
-        backgroundItem.customTextProperty().bindBidirectional(CONFIG.backgroundImageProperty());
-        backgroundItem.selectedDataProperty().bindBidirectional(CONFIG.backgroundImageTypeProperty());
+        backgroundItem.customTextProperty().bindBidirectional(config().backgroundImageProperty());
+        backgroundItem.selectedDataProperty().bindBidirectional(config().backgroundImageTypeProperty());
         backgroundItem.subtitleProperty().bind(
                 new When(backgroundItem.selectedDataProperty().isEqualTo(EnumBackgroundImage.DEFAULT))
                         .then(i18n("launcher.background.default"))
-                        .otherwise(CONFIG.backgroundImageProperty()));
+                        .otherwise(config().backgroundImageProperty()));
         // ====
 
         // ==== Theme ====
-        JFXColorPicker picker = new JFXColorPicker(Color.web(CONFIG.getTheme().getColor()), null);
+        JFXColorPicker picker = new JFXColorPicker(Color.web(config().getTheme().getColor()), null);
         picker.setCustomColorText(i18n("color.custom"));
         picker.setRecentColorsText(i18n("color.recent"));
         picker.getCustomColors().setAll(Theme.SUGGESTED_COLORS);
         picker.setOnAction(e -> {
             Theme theme = Theme.custom(Theme.getColorDisplayName(picker.getValue()));
-            CONFIG.setTheme(theme);
+            config().setTheme(theme);
             Controllers.getScene().getStylesheets().setAll(theme.getStylesheets());
         });
         themeColorPickerContainer.getChildren().setAll(picker);
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/WebStage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/WebStage.java
index 3d9217fb3..46b05493a 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/WebStage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/WebStage.java
@@ -22,14 +22,14 @@ import javafx.scene.image.Image;
 import javafx.scene.web.WebView;
 import javafx.stage.Stage;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
 public class WebStage extends Stage {
     private final WebView webView = new WebView();
 
     public WebStage() {
         setScene(new Scene(webView, 800, 480));
-        getScene().getStylesheets().addAll(CONFIG.getTheme().getStylesheets());
+        getScene().getStylesheets().addAll(config().getTheme().getStylesheets());
         getIcons().add(new Image("/assets/img/icon.png"));
     }
 
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ExportWizardProvider.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ExportWizardProvider.java
index 713d4431b..f495340a6 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ExportWizardProvider.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/export/ExportWizardProvider.java
@@ -37,7 +37,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 
-import static org.jackhuang.hmcl.setting.ConfigHolder.CONFIG;
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
 public final class ExportWizardProvider implements WizardProvider {
     private final Profile profile;
@@ -83,11 +83,11 @@ public final class ExportWizardProvider implements WizardProvider {
 
                         try (ZipEngine zip = new ZipEngine(modpackFile)) {
                             Config exported = new Config();
-                            exported.setBackgroundImageType(CONFIG.getBackgroundImageType());
-                            exported.setBackgroundImage(CONFIG.getBackgroundImage());
-                            exported.setTheme(CONFIG.getTheme());
-                            exported.setDownloadType(CONFIG.getDownloadType());
-                            exported.getAuthlibInjectorServers().setAll(CONFIG.getAuthlibInjectorServers());
+                            exported.setBackgroundImageType(config().getBackgroundImageType());
+                            exported.setBackgroundImage(config().getBackgroundImage());
+                            exported.setTheme(config().getTheme());
+                            exported.setDownloadType(config().getDownloadType());
+                            exported.getAuthlibInjectorServers().setAll(config().getAuthlibInjectorServers());
                             zip.putTextFile(exported.toJson(), ConfigHolder.CONFIG_FILENAME);
                             zip.putFile(tempModpack, "modpack.zip");