diff --git a/Build.Counter b/Build.Counter
index 06ea99ce..af2d99d8 100644
--- a/Build.Counter
+++ b/Build.Counter
@@ -1 +1 @@
-2525
+2550
diff --git a/src/Qv2rayBase.hpp b/src/Qv2rayBase.hpp
index 19eddf2c..708e0cb4 100644
--- a/src/Qv2rayBase.hpp
+++ b/src/Qv2rayBase.hpp
@@ -12,15 +12,17 @@
 const int QV2RAY_CONFIG_VERSION = 6;
 
 // Linux users and DEs should handle the darkMode UI themselves.
-#ifndef Q_OS_LINUX
-#define QV2RAY_USE_BUILTIN_DARKTHEME
+#ifndef QV2RAY_USE_BUILTIN_DARKTHEME
+# ifndef Q_OS_LINUX
+#  define QV2RAY_USE_BUILTIN_DARKTHEME
+# endif
 #endif
 
 // Base folder suffix.
 #ifdef QT_DEBUG
-#define QV2RAY_CONFIG_DIR_SUFFIX "_debug/"
+# define QV2RAY_CONFIG_DIR_SUFFIX "_debug/"
 #else
-#define QV2RAY_CONFIG_DIR_SUFFIX "/"
+# define QV2RAY_CONFIG_DIR_SUFFIX "/"
 #endif
 
 // Get Configured Config Dir Path
@@ -37,15 +39,22 @@ const int QV2RAY_CONFIG_VERSION = 6;
 #define QV2RAY_GENERATED_DIR (QV2RAY_CONFIG_DIR + "generated/")
 #define QV2RAY_GENERATED_FILE_PATH (QV2RAY_GENERATED_DIR + "config.gen.json")
 
-#ifndef QV2RAY_DEFAULT_VCORE_PATH
-#define QV2RAY_DEFAULT_VASSETS_PATH (QV2RAY_CONFIG_DIR + "vcore/")
-#ifdef Q_OS_WIN
-#define QV2RAY_DEFAULT_VCORE_PATH (QV2RAY_CONFIG_DIR + "vcore/v2ray.exe")
+#if ! defined (QV2RAY_DEFAULT_VCORE_PATH) && ! defined (QV2RAY_DEFAULT_VASSETS_PATH)
+#   define QV2RAY_DEFAULT_VASSETS_PATH (QV2RAY_CONFIG_DIR + "vcore/")
+#   ifdef Q_OS_WIN
+#       define QV2RAY_DEFAULT_VCORE_PATH  (QV2RAY_CONFIG_DIR + "vcore/v2ray.exe")
+#   else
+#       define QV2RAY_DEFAULT_VCORE_PATH  (QV2RAY_CONFIG_DIR + "vcore/v2ray")
+#   endif
+#elif defined (QV2RAY_DEFAULT_VCORE_PATH) && defined (QV2RAY_DEFAULT_VASSETS_PATH)
+// ---- Using user-specified VCore and VAssets path
 #else
-#define QV2RAY_DEFAULT_VCORE_PATH (QV2RAY_CONFIG_DIR + "vcore/v2ray")
-#endif
+#   error Both QV2RAY_DEFAULT_VCORE_PATH and QV2RAY_DEFAULT_VASSETS_PATH need to present when specifying the paths.
 #endif
 
+#undef _HAS_MANUAL_VCORE
+#undef _HAS_MANUAL_VASSETS
+
 #define QV2RAY_VCORE_LOG_DIRNAME "logs/"
 #define QV2RAY_VCORE_ACCESS_LOG_FILENAME "access.log"
 #define QV2RAY_VCORE_ERROR_LOG_FILENAME "error.log"
@@ -60,13 +69,13 @@ const int QV2RAY_CONFIG_VERSION = 6;
 #define BLACK(obj)                             \
     obj->setPalette(this->palette());
 
-#define QV2RAY_UI_RESOURCES_ROOT QString::fromStdString(QV2RAY_IS_DARKTHEME ? ":/icons/ui_dark/" : ":/icons/ui_light/")
+#define QV2RAY_UI_RESOURCES_ROOT (QV2RAY_IS_DARKTHEME ? QStringLiteral(":/icons/ui_dark/") : QStringLiteral(":/icons/ui_light/"))
 #define QICON_R(file) QIcon(QV2RAY_UI_RESOURCES_ROOT + file)
 
 #define NEWLINE "\r\n"
 
 #ifndef MAX
-#define MAX(a, b) (((a) > (b)) ? (a) : (b))
+# define MAX(a, b) (((a) > (b)) ? (a) : (b))
 #endif
 
 using namespace std;
diff --git a/src/QvConfigUpgrade.cpp b/src/QvConfigUpgrade.cpp
index eab7ea6b..c4450bb2 100644
--- a/src/QvConfigUpgrade.cpp
+++ b/src/QvConfigUpgrade.cpp
@@ -25,7 +25,7 @@ namespace Qv2ray
             case 2: {
                 // We copied those files.
                 auto vCoreFilePath = root["v2CorePath"].toString();
-                auto vCoreDestPath = QV2RAY_DEFAULT_VCORE_PATH;
+                auto vCoreDestPath = QString(QV2RAY_DEFAULT_VCORE_PATH);
                 // We also need v2ctl
                 auto v2CtlFilePath = QFileInfo(vCoreFilePath).dir().path() + "/v2ctl";
                 auto v2CtlDestPath = QFileInfo(vCoreDestPath).dir().path() + "/v2ctl";
diff --git a/src/main.cpp b/src/main.cpp
index dd698848..a92dfed3 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -146,8 +146,8 @@ bool initialiseQv2ray()
             }
 
             Qv2rayConfig conf;
-            conf.v2AssetsPath = QV2RAY_DEFAULT_VASSETS_PATH;
-            conf.v2CorePath = QV2RAY_DEFAULT_VCORE_PATH;
+            conf.v2AssetsPath = QString(QV2RAY_DEFAULT_VASSETS_PATH);
+            conf.v2CorePath = QString(QV2RAY_DEFAULT_VCORE_PATH);
             conf.logLevel = 3;
             //
             // Save initial config.
diff --git a/src/ui/w_MainWindow.cpp b/src/ui/w_MainWindow.cpp
index 2e366c4f..2b4733e0 100644
--- a/src/ui/w_MainWindow.cpp
+++ b/src/ui/w_MainWindow.cpp
@@ -332,7 +332,6 @@ void MainWindow::OnConfigListChanged(bool need_restart)
     connections.clear();
     connectionListWidget->clear();
     auto _regularConnections = GetRegularConnections(currentConfig.configs);
-    //
     auto _subsConnections = GetSubscriptionConnections(currentConfig.subscriptions.keys());
 
     for (auto i = 0; i < _regularConnections.count(); i++) {
@@ -562,7 +561,7 @@ void MainWindow::ShowAndSetConnection(QString guiConnectionName, bool SetConnect
     }
 
     // Get Connection info
-    auto host_port = MWGetConnectionPortNumber(currentSelectedName);
+    auto host_port = MWGetConnectionInfo(currentSelectedName);
     _hostLabel->setText(get<0>(host_port));
     _portLabel->setText(QString::number(get<1>(host_port)));
     _OutBoundTypeLabel->setText(get<2>(host_port));
diff --git a/src/ui/w_MainWindow.hpp b/src/ui/w_MainWindow.hpp
index a0b2c017..e5715466 100644
--- a/src/ui/w_MainWindow.hpp
+++ b/src/ui/w_MainWindow.hpp
@@ -45,15 +45,11 @@ class MainWindow : public QMainWindow, Ui::MainWindow
         void UpdateVCoreLog(const QString &log);
         void OnConfigListChanged(bool need_restart);
     private slots:
-        void setMasterLogHBar();
         void on_action_RCM_ShareQR_triggered();
         void on_startButton_clicked();
         void on_stopButton_clicked();
         void on_reconnectButton_clicked();
-        void VersionUpdate(QByteArray &data);
         void on_activatedTray(QSystemTrayIcon::ActivationReason reason);
-        void ToggleVisibility();
-        void quit();
         void on_actionExit_triggered();
         void on_preferencesBtn_clicked();
         void on_connectionListWidget_doubleClicked(const QModelIndex &index);
@@ -69,10 +65,14 @@ class MainWindow : public QMainWindow, Ui::MainWindow
         void on_shareBtn_clicked();
         void on_duplicateBtn_clicked();
         void on_subsButton_clicked();
+        //
+        void ToggleVisibility();
+        void setMasterLogHBar();
+        void VersionUpdate(QByteArray &data);
+        void quit();
 
     public:
         static MainWindow *mwInstance;
-        CONFIGROOT CurrentFullConfig;
         QString CurrentConnectionName = "";
         ConnectionInstance *vinstance;
 
@@ -93,6 +93,7 @@ class MainWindow : public QMainWindow, Ui::MainWindow
         void SetEditWidgetEnable(bool enabled);
         void ShowAndSetConnection(QString currentText, bool SetConnection, bool Apply);
         Qv2rayConfig currentConfig;
+        CONFIGROOT currentFullConfig;
         //
         // Charts
         QChartView *speedChartView;
@@ -148,7 +149,7 @@ class MainWindow : public QMainWindow, Ui::MainWindow
         bool MWtryStartConnection();
         void MWStopConnection();
         void MWTryPingConnection(const QString &alias);
-        tuple<QString, int, QString> MWGetConnectionPortNumber(const QString &alias);
+        tuple<QString, int, QString> MWGetConnectionInfo(const QString &alias);
         void MWSetSystemProxy();
         void MWClearSystemProxy(bool);
 };
diff --git a/src/ui/w_MainWindow_extra.cpp b/src/ui/w_MainWindow_extra.cpp
index 3162f1f2..603a96b2 100644
--- a/src/ui/w_MainWindow_extra.cpp
+++ b/src/ui/w_MainWindow_extra.cpp
@@ -106,8 +106,8 @@ void MainWindow::MWSetSystemProxy()
 bool MainWindow::MWtryStartConnection()
 {
     auto connectionRoot = connections[CurrentConnectionName].config;
-    CurrentFullConfig = GenerateRuntimeConfig(connectionRoot);
-    bool startFlag = this->vinstance->StartConnection(CurrentFullConfig, currentConfig.connectionConfig.statsPort);
+    currentFullConfig = GenerateRuntimeConfig(connectionRoot);
+    bool startFlag = this->vinstance->StartConnection(currentFullConfig, currentConfig.connectionConfig.statsPort);
 
     if (startFlag) {
         bool usePAC = currentConfig.inboundConfig.pacConfig.enablePAC;
@@ -177,7 +177,7 @@ void MainWindow::MWStopConnection()
 void MainWindow::MWTryPingConnection(const QString &alias)
 {
     try {
-        auto info  = MWGetConnectionPortNumber(alias);
+        auto info  = MWGetConnectionInfo(alias);
         QString host = get<0>(info);
         int port = get<1>(info);
         tcpingModel->StartPing(alias, host, port);
@@ -186,12 +186,11 @@ void MainWindow::MWTryPingConnection(const QString &alias)
     }
 }
 
-tuple<QString, int, QString> MainWindow::MWGetConnectionPortNumber(const QString &alias)
+tuple<QString, int, QString> MainWindow::MWGetConnectionInfo(const QString &alias)
 {
     if (!connections.contains(alias))
         return make_tuple(tr("N/A"), 0, tr("N/A"));
 
-    auto root = connections[alias].config;
-    return GetConnectionInfo(root);
+    return GetConnectionInfo(connections[alias].config);
 }
 
diff --git a/src/ui/w_PreferencesWindow.cpp b/src/ui/w_PreferencesWindow.cpp
index 2a333839..2cfd70eb 100644
--- a/src/ui/w_PreferencesWindow.cpp
+++ b/src/ui/w_PreferencesWindow.cpp
@@ -377,8 +377,8 @@ void PreferencesWindow::on_tProxyCheckBox_stateChanged(int arg1)
                     // Only trying to remove file when they are not in the default dir.
                     // (In other words...) Keep using the current files. <Because we don't know where else we can copy the file from...>
                     if (QFile(QV2RAY_DEFAULT_VCORE_PATH).exists()) {
-                        LOG(MODULE_FILE, QV2RAY_DEFAULT_VCORE_PATH.toStdString() + ": File already exists.")
-                        LOG(MODULE_FILE, QV2RAY_DEFAULT_VCORE_PATH.toStdString() + ": Deleting file.")
+                        LOG(MODULE_FILE, QString(QV2RAY_DEFAULT_VCORE_PATH).toStdString() + ": File already exists.")
+                        LOG(MODULE_FILE, QString(QV2RAY_DEFAULT_VCORE_PATH).toStdString() + ": Deleting file.")
                         QFile(QV2RAY_DEFAULT_VCORE_PATH).remove();
                     }
 
diff --git a/src/ui/w_PreferencesWindow.ui b/src/ui/w_PreferencesWindow.ui
index 229fd08a..b9c02941 100644
--- a/src/ui/w_PreferencesWindow.ui
+++ b/src/ui/w_PreferencesWindow.ui
@@ -42,7 +42,7 @@
       <enum>QTabWidget::Rounded</enum>
      </property>
      <property name="currentIndex">
-      <number>0</number>
+      <number>1</number>
      </property>
      <widget class="QWidget" name="tab">
       <attribute name="title">
@@ -525,7 +525,7 @@
        </item>
        <item>
         <layout class="QGridLayout" name="gridLayout_7">
-         <item row="0" column="0" rowspan="2">
+         <item row="0" column="0">
           <widget class="QGroupBox" name="socksGroupBox">
            <property name="title">
             <string>SOCKS Settings</string>
@@ -559,62 +559,79 @@
              </widget>
             </item>
             <item row="1" column="1">
-             <widget class="QCheckBox" name="socksUDPCB">
-              <property name="text">
-               <string>Enabled</string>
-              </property>
-             </widget>
+             <layout class="QHBoxLayout" name="horizontalLayout_8">
+              <item>
+               <widget class="QCheckBox" name="socksUDPCB">
+                <property name="text">
+                 <string>Enabled</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <spacer name="horizontalSpacer_5">
+                <property name="orientation">
+                 <enum>Qt::Horizontal</enum>
+                </property>
+                <property name="sizeHint" stdset="0">
+                 <size>
+                  <width>40</width>
+                  <height>20</height>
+                 </size>
+                </property>
+               </spacer>
+              </item>
+              <item>
+               <widget class="QLabel" name="label_25">
+                <property name="text">
+                 <string>IP:</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QLineEdit" name="socksUDPIP">
+                <property name="placeholderText">
+                 <string notr="true">127.0.0.1</string>
+                </property>
+               </widget>
+              </item>
+             </layout>
             </item>
             <item row="2" column="0">
-             <widget class="QLabel" name="label_25">
-              <property name="text">
-               <string>Local IP (For UDP)</string>
-              </property>
-             </widget>
-            </item>
-            <item row="2" column="1">
-             <widget class="QLineEdit" name="socksUDPIP">
-              <property name="placeholderText">
-               <string notr="true">127.0.0.1</string>
-              </property>
-             </widget>
-            </item>
-            <item row="3" column="0">
              <widget class="QLabel" name="label_10">
               <property name="text">
                <string>Authentication</string>
               </property>
              </widget>
             </item>
-            <item row="3" column="1">
+            <item row="2" column="1">
              <widget class="QCheckBox" name="socksAuthCB">
               <property name="text">
                <string>Enabled</string>
               </property>
              </widget>
             </item>
-            <item row="4" column="0">
+            <item row="3" column="0">
              <widget class="QLabel" name="label_11">
               <property name="text">
                <string>Username</string>
               </property>
              </widget>
             </item>
-            <item row="4" column="1">
+            <item row="3" column="1">
              <widget class="QLineEdit" name="socksAuthUsernameTxt">
               <property name="placeholderText">
                <string notr="true">user</string>
               </property>
              </widget>
             </item>
-            <item row="5" column="0">
+            <item row="4" column="0">
              <widget class="QLabel" name="label_12">
               <property name="text">
                <string>Password</string>
               </property>
              </widget>
             </item>
-            <item row="5" column="1">
+            <item row="4" column="1">
              <widget class="QLineEdit" name="socksAuthPasswordTxt">
               <property name="placeholderText">
                <string notr="true">pass</string>
@@ -624,7 +641,7 @@
            </layout>
           </widget>
          </item>
-         <item row="0" column="1">
+         <item row="1" column="0">
           <widget class="QGroupBox" name="httpGroupBox">
            <property name="title">
             <string>HTTP Settings</string>
@@ -695,7 +712,7 @@
            </layout>
           </widget>
          </item>
-         <item row="1" column="1">
+         <item row="0" column="1" rowspan="2">
           <widget class="QGroupBox" name="pacGroupBox">
            <property name="title">
             <string>PAC Settings</string>