Improve acrylic effect for example and FluNavigationview.

example/qml/component/CustomWindow.qml

@@ -45,9 +45,20 @@ FluWindow {
             setHitTestVisible(title_bar.closeButton())
             framless_helper.setWindowFixedSize(fixSize)
             title_bar.maximizeButton.visible = !fixSize
+            if (blurBehindWindowEnabled)
+                window.backgroundOpacity = 0.8
             window.visible = true
         }
     }
+    Connections{
+        target: FluTheme
+        function onDarkChanged(){
+            if (FluTheme.dark)
+                FramelessUtils.systemTheme = FramelessHelperConstants.Dark
+            else
+                FramelessUtils.systemTheme = FramelessHelperConstants.Light
+        }
+    }
 
     function setHitTestVisible(com){
         framless_helper.setHitTestVisible(com)

example/qml/page/T_Home.qml

@@ -75,10 +75,10 @@ FluScrollablePage{
                     FluAcrylic {
                         sourceItem:bg
                         anchors.fill: parent
-                        color: FluTheme.dark ? 'black' : 'white'
+                        color: FluTheme.dark ? Window.active ?  Qt.rgba(38/255,44/255,54/255,1) : Qt.rgba(39/255,39/255,39/255,1) : Qt.rgba(251/255,251/255,253/255,1)
                         rectX: list.x-list.contentX+10+(control.width)*index
                         rectY: list.y+10
-                        acrylicOpacity:0.5
+                        acrylicOpacity:0.8
                     }
                     Rectangle{
                         anchors.fill: parent

example/src/main.cpp

@@ -22,6 +22,9 @@ FRAMELESSHELPER_USE_NAMESPACE
     QGuiApplication::setApplicationName("FluentUI");
     QGuiApplication app(argc, argv);
     FramelessConfig::instance()->set(Global::Option::ForceHideWindowFrameBorder);
+    FramelessConfig::instance()->set(Global::Option::EnableBlurBehindWindow);
+    FramelessConfig::instance()->set(Global::Option::DisableLazyInitializationForMicaMaterial);
+    FramelessConfig::instance()->set(Global::Option::CenterWindowBeforeShow);
     AppInfo* appInfo = new AppInfo();
     IPC ipc(0);
     QString activeWindowEvent = "activeWindow";

src/imports/FluentUI/Controls/FluNavigationView.qml

@@ -590,6 +590,7 @@ Item {
             d.enableNavigationPanel = false
         }
     }
+
     Rectangle{
         id:layout_list
         width: {
@@ -620,10 +621,10 @@ Item {
         border.color: FluTheme.dark ? Qt.rgba(45/255,45/255,45/255,1) : Qt.rgba(226/255,230/255,234/255,1)
         border.width:  d.isMinimal || d.isCompactAndPanel ? 1 : 0
         color: {
-            if(d.isMinimal || d.isCompactAndPanel){
+            if(d.isMinimal){
                 return FluTheme.dark ? Qt.rgba(61/255,61/255,61/255,1) : Qt.rgba(243/255,243/255,243/255,1)
             }
-            return "#00000000"
+            return "transparent"
         }
 
         x: {
@@ -631,6 +632,20 @@ Item {
                 return 0
             return d.isMinimalAndPanel  ? 0 : -width
         }
+        FluAcrylic {
+            sourceItem:nav_swipe
+            anchors.fill: layout_list
+            color: {
+                if(d.isMinimal){
+                    return FluTheme.dark ? Qt.rgba(61/255,61/255,61/255,1) : Qt.rgba(243/255,243/255,243/255,1)
+                }
+                return "transparent"
+            }
+            visible: d.isMinimal
+            rectX: layout_list.x
+            rectY: layout_list.y - 60
+            acrylicOpacity:0.9
+        }
         Item{
             id:layout_header
             width: layout_list.width

src/imports/FluentUI/Controls/FluWindow.qml

@@ -30,6 +30,7 @@ Window {
         }
         return FluTheme.dark ? Qt.rgba(32/255,32/255,32/255,1) : Qt.rgba(243/255,243/255,243/255,1)
     }
+    property alias backgroundOpacity: bg.opacity
     signal initArgument(var argument)
     id:window
     color:"transparent"
@@ -39,6 +40,7 @@ Window {
         initArgument(argument)
     }
     Rectangle{
+        id: bg
         anchors.fill: parent
         color: backgroundColor
         Behavior on color{