diff --git a/src/FluGlobal.cpp b/src/FluGlobal.cpp
index 52d31b11..5d686d45 100644
--- a/src/FluGlobal.cpp
+++ b/src/FluGlobal.cpp
@@ -18,7 +18,7 @@ void postInit(){
     qDebug()<<"postInit";
     FramelessHelper::Core::setApplicationOSThemeAware();
     FramelessConfig::instance()->set(Global::Option::EnableBlurBehindWindow);
-    FramelessConfig::instance()->set(Global::Option::DisableLazyInitializationForMicaMaterial);
+//    FramelessConfig::instance()->set(Global::Option::DisableLazyInitializationForMicaMaterial);
 }
 void initEngine(QQmlApplicationEngine* engine){
     qDebug()<<"initEngine";
diff --git a/src/FluTheme.cpp b/src/FluTheme.cpp
index e59ec16e..c2b4e1bd 100644
--- a/src/FluTheme.cpp
+++ b/src/FluTheme.cpp
@@ -1,3 +1,37 @@
+//#include "FluTheme.h"
+
+//#include "Def.h"
+//#include "FluColors.h"
+//#include <QPalette>
+//#include <QtGui/qpa/qplatformtheme.h>
+//#include <QtGui/private/qguiapplication_p.h>
+//#include <QGuiApplication>
+//#include <FramelessHelper/Core/utils.h>
+//#include <FramelessHelper/Core/framelessmanager.h>
+
+//FRAMELESSHELPER_USE_NAMESPACE;
+
+//FluTheme* FluTheme::m_instance = nullptr;
+
+//FluTheme *FluTheme::getInstance()
+//{
+//    if(FluTheme::m_instance == nullptr){
+//        FluTheme::m_instance = new FluTheme;
+//    }
+//    return FluTheme::m_instance;
+//}
+
+//FluTheme::FluTheme(QObject *parent)
+//    : QObject{parent}
+//{
+//    primaryColor(FluColors::getInstance()->Blue());
+//    nativeText(false);
+//    dark(FramelessManager::instance()->systemTheme() == Global::SystemTheme::Dark);
+//    connect(FramelessManager::instance(), &FramelessManager::systemThemeChanged, this, [this](){
+//        dark(Utils::getSystemTheme()==Global::SystemTheme::Dark);
+//    });
+//}
+
 #include "FluTheme.h"
 
 #include "Def.h"
@@ -6,6 +40,11 @@
 #include <QtGui/qpa/qplatformtheme.h>
 #include <QtGui/private/qguiapplication_p.h>
 #include <QGuiApplication>
+#include <FramelessHelper/Core/utils.h>
+#include <FramelessHelper/Core/framelessmanager.h>
+
+FRAMELESSHELPER_USE_NAMESPACE;
+
 
 FluTheme* FluTheme::m_instance = nullptr;
 
@@ -43,12 +82,10 @@ bool FluTheme::eventFilter(QObject *obj, QEvent *event)
     return false;
 }
 
+
 bool FluTheme::systemDark()
 {
-    if (const QPlatformTheme * const theme = QGuiApplicationPrivate::platformTheme()) {
-        return (theme->appearance() == QPlatformTheme::Appearance::Dark);
-    }
-    return false;
+    return Utils::getSystemTheme()==Global::SystemTheme::Dark;
 }
 
 bool FluTheme::dark(){
diff --git a/src/imports/FluentUI/Controls/FluAppBar.qml b/src/imports/FluentUI/Controls/FluAppBar.qml
index 27fb70a5..da6f7403 100644
--- a/src/imports/FluentUI/Controls/FluAppBar.qml
+++ b/src/imports/FluentUI/Controls/FluAppBar.qml
@@ -23,7 +23,17 @@ Rectangle{
     property bool isMac: FluTools.isMacos()
     property color borerlessColor : FluTheme.dark ? FluTheme.primaryColor.lighter : FluTheme.primaryColor.dark
     id:root
-    color: Qt.rgba(0,0,0,0)
+    color: {
+        if(active){
+            return FluTheme.dark ? Qt.rgba(26/255,34/255,40/255,1) : Qt.rgba(238/255,244/255,249/255,1)
+        }
+        return FluTheme.dark ? Qt.rgba(32/255,32/255,32/255,1) : Qt.rgba(243/255,243/255,243/255,1)
+    }
+    Behavior on color{
+        ColorAnimation {
+            duration: 300
+        }
+    }
     height: visible ? 30 : 0
     opacity: visible
     z: 65535
diff --git a/src/imports/FluentUI/Controls/FluNavigationView.qml b/src/imports/FluentUI/Controls/FluNavigationView.qml
index d897101d..c268692f 100644
--- a/src/imports/FluentUI/Controls/FluNavigationView.qml
+++ b/src/imports/FluentUI/Controls/FluNavigationView.qml
@@ -623,15 +623,7 @@ Item {
             if(d.isMinimal || d.isCompactAndPanel){
                 return FluTheme.dark ? Qt.rgba(61/255,61/255,61/255,1) : Qt.rgba(243/255,243/255,243/255,1)
             }
-            if(Window.window.active){
-                return FluTheme.dark ? Qt.rgba(26/255,34/255,41/255,1) : Qt.rgba(238/255,244/255,249/255,1)
-            }
-            return FluTheme.dark ? Qt.rgba(32/255,32/255,32/255,1) : Qt.rgba(243/255,243/255,243/255,1)
-        }
-        Behavior on color{
-            ColorAnimation {
-                duration: 300
-            }
+            return "transparent"
         }
         x: {
             if(d.displayMode !== FluNavigationView.Minimal)
diff --git a/src/imports/FluentUI/Controls/FluWindow.qml b/src/imports/FluentUI/Controls/FluWindow.qml
index 6970098f..09d5fd86 100644
--- a/src/imports/FluentUI/Controls/FluWindow.qml
+++ b/src/imports/FluentUI/Controls/FluWindow.qml
@@ -1,6 +1,7 @@
 import QtQuick
 import QtQuick.Window
 import QtQuick.Controls
+import QtQuick.Controls.Basic
 import QtQuick.Layouts
 import FluentUI
 import org.wangwenx190.FramelessHelper
@@ -28,15 +29,15 @@ Window {
             event.accepted = false
         }
     }
-    property color backgroundColor: {
-        if(active){
-            return FluTheme.dark ? Qt.rgba(26/255,34/255,40/255,1) : Qt.rgba(238/255,244/255,249/255,1)
-        }
-        return FluTheme.dark ? Qt.rgba(32/255,32/255,32/255,1) : Qt.rgba(243/255,243/255,243/255,1)
-    }
     signal initArgument(var argument)
     id:window
-    color:"transparent"
+    property color backgroundColor: {
+          if(active){
+              return FluTheme.dark ? Qt.rgba(26/255,34/255,40/255,1) : Qt.rgba(238/255,244/255,249/255,1)
+          }
+          return FluTheme.dark ? Qt.rgba(32/255,32/255,32/255,1) : Qt.rgba(243/255,243/255,243/255,1)
+      }
+    color: "transparent"
     onClosing:(event)=>closeFunc(event)
     Component.onCompleted: {
         helper.initWindow(window)
@@ -45,6 +46,7 @@ Window {
     Rectangle{
         anchors.fill: parent
         color: backgroundColor
+        visible: FluTheme.darkMode !== FluDarkMode.System
         Behavior on color{
             ColorAnimation {
                 duration: 300