diff --git a/flutter/lib/common.dart b/flutter/lib/common.dart
index 40c4d46e0..b6ed6b519 100644
--- a/flutter/lib/common.dart
+++ b/flutter/lib/common.dart
@@ -3214,3 +3214,46 @@ Widget buildPresetPasswordWarning() {
     },
   );
 }
+
+// https://github.com/leanflutter/window_manager/blob/87dd7a50b4cb47a375b9fc697f05e56eea0a2ab3/lib/src/widgets/virtual_window_frame.dart#L44
+Widget buildVirtualWindowFrame(BuildContext context, Widget child) {
+  boxShadow() => isMainDesktopWindow
+      ? <BoxShadow>[
+          if (stateGlobal.fullscreen.isFalse || stateGlobal.isMaximized.isFalse)
+            BoxShadow(
+              color: Colors.black.withOpacity(0.1),
+              offset: Offset(
+                  0.0,
+                  stateGlobal.isFocused.isTrue
+                      ? kFrameBoxShadowOffsetFocused
+                      : kFrameBoxShadowOffsetUnfocused),
+              blurRadius: kFrameBoxShadowBlurRadius,
+            ),
+        ]
+      : null;
+  return Obx(
+    () => Container(
+      decoration: BoxDecoration(
+        color: isMainDesktopWindow ? Colors.transparent : Theme.of(context).colorScheme.background,
+        border: Border.all(
+          color: Theme.of(context).dividerColor,
+          width: stateGlobal.windowBorderWidth.value,
+        ),
+        borderRadius: BorderRadius.circular(
+          (stateGlobal.fullscreen.isTrue || stateGlobal.isMaximized.isTrue)
+              ? 0
+              : kFrameBorderRadius,
+        ),
+        boxShadow: boxShadow(),
+      ),
+      child: ClipRRect(
+        borderRadius: BorderRadius.circular(
+          (stateGlobal.fullscreen.isTrue || stateGlobal.isMaximized.isTrue)
+              ? 0
+              : kFrameClipRRectBorderRadius,
+        ),
+        child: child,
+      ),
+    ),
+  );
+}
diff --git a/flutter/lib/consts.dart b/flutter/lib/consts.dart
index 1b0e72f05..14f17fa29 100644
--- a/flutter/lib/consts.dart
+++ b/flutter/lib/consts.dart
@@ -154,9 +154,14 @@ const kDefaultScrollDuration = Duration(milliseconds: 50);
 const kDefaultMouseWheelThrottleDuration = Duration(milliseconds: 50);
 const kFullScreenEdgeSize = 0.0;
 const kMaximizeEdgeSize = 0.0;
-var kWindowEdgeSize = isWindows ? 1.0 : 5.0;
-const kWindowBorderWidth = 1.0;
+final kWindowEdgeSize = isWindows ? 1.0 : 5.0;
+final kWindowBorderWidth = isLinux ? 1.0 : 0.0;
 const kDesktopMenuPadding = EdgeInsets.only(left: 12.0, right: 3.0);
+const kFrameBorderRadius = 12.0;
+const kFrameClipRRectBorderRadius = 12.0;
+const kFrameBoxShadowBlurRadius = 32.0;
+const kFrameBoxShadowOffsetFocused = 4.0;
+const kFrameBoxShadowOffsetUnfocused = 2.0;
 
 const kInvalidValueStr = 'InvalidValueStr';
 
diff --git a/flutter/lib/desktop/pages/file_manager_tab_page.dart b/flutter/lib/desktop/pages/file_manager_tab_page.dart
index be3ba2497..b9d4f274e 100644
--- a/flutter/lib/desktop/pages/file_manager_tab_page.dart
+++ b/flutter/lib/desktop/pages/file_manager_tab_page.dart
@@ -91,18 +91,21 @@ class _FileManagerTabPageState extends State<FileManagerTabPage> {
 
   @override
   Widget build(BuildContext context) {
-    final tabWidget = Container(
-      decoration: BoxDecoration(
-          border: Border.all(color: MyTheme.color(context).border!)),
-      child: Scaffold(
-          backgroundColor: Theme.of(context).cardColor,
-          body: DesktopTab(
-            controller: tabController,
-            onWindowCloseButton: handleWindowCloseButton,
-            tail: const AddButton(),
-            labelGetter: DesktopTab.tablabelGetter,
-          )),
-    );
+    final child = Scaffold(
+        backgroundColor: Theme.of(context).cardColor,
+        body: DesktopTab(
+          controller: tabController,
+          onWindowCloseButton: handleWindowCloseButton,
+          tail: const AddButton(),
+          labelGetter: DesktopTab.tablabelGetter,
+        ));
+    final tabWidget = isLinux
+        ? buildVirtualWindowFrame(context, child)
+        : Container(
+            decoration: BoxDecoration(
+                border: Border.all(color: MyTheme.color(context).border!)),
+            child: child,
+          );
     return isMacOS || kUseCompatibleUiMode
         ? tabWidget
         : SubWindowDragToResizeArea(
diff --git a/flutter/lib/desktop/pages/port_forward_tab_page.dart b/flutter/lib/desktop/pages/port_forward_tab_page.dart
index edd995adc..ac94890b6 100644
--- a/flutter/lib/desktop/pages/port_forward_tab_page.dart
+++ b/flutter/lib/desktop/pages/port_forward_tab_page.dart
@@ -97,21 +97,30 @@ class _PortForwardTabPageState extends State<PortForwardTabPage> {
 
   @override
   Widget build(BuildContext context) {
-    final tabWidget = Container(
-      decoration: BoxDecoration(
-          border: Border.all(color: MyTheme.color(context).border!)),
-      child: Scaffold(
-          backgroundColor: Theme.of(context).colorScheme.background,
-          body: DesktopTab(
-            controller: tabController,
-            onWindowCloseButton: () async {
-              tabController.clear();
-              return true;
-            },
-            tail: AddButton(),
-            labelGetter: DesktopTab.tablabelGetter,
-          )),
+    final child = Scaffold(
+      backgroundColor: Theme.of(context).colorScheme.background,
+      body: DesktopTab(
+        controller: tabController,
+        onWindowCloseButton: () async {
+          tabController.clear();
+          return true;
+        },
+        tail: AddButton(),
+        labelGetter: DesktopTab.tablabelGetter,
+      ),
     );
+    final tabWidget = isLinux
+        ? buildVirtualWindowFrame(
+            context,
+            Scaffold(
+                backgroundColor: Theme.of(context).colorScheme.background,
+                body: child),
+          )
+        : Container(
+            decoration: BoxDecoration(
+                border: Border.all(color: MyTheme.color(context).border!)),
+            child: child,
+          );
     return isMacOS || kUseCompatibleUiMode
         ? tabWidget
         : Obx(
diff --git a/flutter/lib/desktop/pages/remote_page.dart b/flutter/lib/desktop/pages/remote_page.dart
index ecd9e62bb..9ce4c1827 100644
--- a/flutter/lib/desktop/pages/remote_page.dart
+++ b/flutter/lib/desktop/pages/remote_page.dart
@@ -7,6 +7,7 @@ import 'package:get/get.dart';
 import 'package:provider/provider.dart';
 import 'package:wakelock_plus/wakelock_plus.dart';
 import 'package:flutter_improved_scrolling/flutter_improved_scrolling.dart';
+import 'package:flutter_hbb/models/state_model.dart';
 
 import '../../consts.dart';
 import '../../common/widgets/overlay.dart';
@@ -165,6 +166,7 @@ class _RemotePageState extends State<RemotePage>
       // and let OS to handle events instead.
       _rawKeyFocusNode.unfocus();
     }
+    stateGlobal.isFocused.value = false;
   }
 
   @override
@@ -174,6 +176,7 @@ class _RemotePageState extends State<RemotePage>
     if (isWindows) {
       _isWindowBlur = false;
     }
+    stateGlobal.isFocused.value = true;
   }
 
   @override
diff --git a/flutter/lib/desktop/pages/remote_tab_page.dart b/flutter/lib/desktop/pages/remote_tab_page.dart
index 9d7d0c221..350bdf79d 100644
--- a/flutter/lib/desktop/pages/remote_tab_page.dart
+++ b/flutter/lib/desktop/pages/remote_tab_page.dart
@@ -131,103 +131,103 @@ class _ConnectionTabPageState extends State<ConnectionTabPage> {
 
   @override
   Widget build(BuildContext context) {
-    final tabWidget = Obx(
-      () => Container(
-        decoration: BoxDecoration(
-          border: Border.all(
-              color: MyTheme.color(context).border!,
-              width: stateGlobal.windowBorderWidth.value),
-        ),
-        child: Scaffold(
-          backgroundColor: Theme.of(context).colorScheme.background,
-          body: DesktopTab(
-            controller: tabController,
-            onWindowCloseButton: handleWindowCloseButton,
-            tail: const AddButton(),
-            pageViewBuilder: (pageView) => pageView,
-            labelGetter: DesktopTab.tablabelGetter,
-            tabBuilder: (key, icon, label, themeConf) => Obx(() {
-              final connectionType = ConnectionTypeState.find(key);
-              if (!connectionType.isValid()) {
-                return Row(
-                  mainAxisAlignment: MainAxisAlignment.center,
-                  children: [
-                    icon,
-                    label,
-                  ],
-                );
-              } else {
-                bool secure =
-                    connectionType.secure.value == ConnectionType.strSecure;
-                bool direct =
-                    connectionType.direct.value == ConnectionType.strDirect;
-                String msgConn;
-                if (secure && direct) {
-                  msgConn = translate("Direct and encrypted connection");
-                } else if (secure && !direct) {
-                  msgConn = translate("Relayed and encrypted connection");
-                } else if (!secure && direct) {
-                  msgConn = translate("Direct and unencrypted connection");
-                } else {
-                  msgConn = translate("Relayed and unencrypted connection");
-                }
-                var msgFingerprint = '${translate('Fingerprint')}:\n';
-                var fingerprint = FingerprintState.find(key).value;
-                if (fingerprint.isEmpty) {
-                  fingerprint = 'N/A';
-                }
-                if (fingerprint.length > 5 * 8) {
-                  var first = fingerprint.substring(0, 39);
-                  var second = fingerprint.substring(40);
-                  msgFingerprint += '$first\n$second';
-                } else {
-                  msgFingerprint += fingerprint;
-                }
+    final child = Scaffold(
+      backgroundColor: Theme.of(context).colorScheme.background,
+      body: DesktopTab(
+        controller: tabController,
+        onWindowCloseButton: handleWindowCloseButton,
+        tail: const AddButton(),
+        pageViewBuilder: (pageView) => pageView,
+        labelGetter: DesktopTab.tablabelGetter,
+        tabBuilder: (key, icon, label, themeConf) => Obx(() {
+          final connectionType = ConnectionTypeState.find(key);
+          if (!connectionType.isValid()) {
+            return Row(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                icon,
+                label,
+              ],
+            );
+          } else {
+            bool secure =
+                connectionType.secure.value == ConnectionType.strSecure;
+            bool direct =
+                connectionType.direct.value == ConnectionType.strDirect;
+            String msgConn;
+            if (secure && direct) {
+              msgConn = translate("Direct and encrypted connection");
+            } else if (secure && !direct) {
+              msgConn = translate("Relayed and encrypted connection");
+            } else if (!secure && direct) {
+              msgConn = translate("Direct and unencrypted connection");
+            } else {
+              msgConn = translate("Relayed and unencrypted connection");
+            }
+            var msgFingerprint = '${translate('Fingerprint')}:\n';
+            var fingerprint = FingerprintState.find(key).value;
+            if (fingerprint.isEmpty) {
+              fingerprint = 'N/A';
+            }
+            if (fingerprint.length > 5 * 8) {
+              var first = fingerprint.substring(0, 39);
+              var second = fingerprint.substring(40);
+              msgFingerprint += '$first\n$second';
+            } else {
+              msgFingerprint += fingerprint;
+            }
 
-                final tab = Row(
-                  mainAxisAlignment: MainAxisAlignment.center,
-                  children: [
-                    icon,
-                    Tooltip(
-                      message: '$msgConn\n$msgFingerprint',
-                      child: SvgPicture.asset(
-                        'assets/${connectionType.secure.value}${connectionType.direct.value}.svg',
-                        width: themeConf.iconSize,
-                        height: themeConf.iconSize,
-                      ).paddingOnly(right: 5),
-                    ),
-                    label,
-                    unreadMessageCountBuilder(UnreadChatCountState.find(key))
-                        .marginOnly(left: 4),
-                  ],
-                );
+            final tab = Row(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                icon,
+                Tooltip(
+                  message: '$msgConn\n$msgFingerprint',
+                  child: SvgPicture.asset(
+                    'assets/${connectionType.secure.value}${connectionType.direct.value}.svg',
+                    width: themeConf.iconSize,
+                    height: themeConf.iconSize,
+                  ).paddingOnly(right: 5),
+                ),
+                label,
+                unreadMessageCountBuilder(UnreadChatCountState.find(key))
+                    .marginOnly(left: 4),
+              ],
+            );
 
-                return Listener(
-                  onPointerDown: (e) {
-                    if (e.kind != ui.PointerDeviceKind.mouse) {
-                      return;
-                    }
-                    final remotePage = tabController.state.value.tabs
-                        .firstWhere((tab) => tab.key == key)
-                        .page as RemotePage;
-                    if (remotePage.ffi.ffiModel.pi.isSet.isTrue &&
-                        e.buttons == 2) {
-                      showRightMenu(
-                        (CancelFunc cancelFunc) {
-                          return _tabMenuBuilder(key, cancelFunc);
-                        },
-                        target: e.position,
-                      );
-                    }
-                  },
-                  child: tab,
-                );
-              }
-            }),
-          ),
-        ),
+            return Listener(
+              onPointerDown: (e) {
+                if (e.kind != ui.PointerDeviceKind.mouse) {
+                  return;
+                }
+                final remotePage = tabController.state.value.tabs
+                    .firstWhere((tab) => tab.key == key)
+                    .page as RemotePage;
+                if (remotePage.ffi.ffiModel.pi.isSet.isTrue && e.buttons == 2) {
+                  showRightMenu(
+                    (CancelFunc cancelFunc) {
+                      return _tabMenuBuilder(key, cancelFunc);
+                    },
+                    target: e.position,
+                  );
+                }
+              },
+              child: tab,
+            );
+          }
+        }),
       ),
     );
+    final tabWidget = isLinux
+        ? buildVirtualWindowFrame(context, child)
+        : Obx(() => Container(
+              decoration: BoxDecoration(
+                border: Border.all(
+                    color: MyTheme.color(context).border!,
+                    width: stateGlobal.windowBorderWidth.value),
+              ),
+              child: child,
+            ));
     return isMacOS || kUseCompatibleUiMode
         ? tabWidget
         : Obx(() => SubWindowDragToResizeArea(
diff --git a/flutter/lib/desktop/pages/server_page.dart b/flutter/lib/desktop/pages/server_page.dart
index 6d5466add..5730bb81d 100644
--- a/flutter/lib/desktop/pages/server_page.dart
+++ b/flutter/lib/desktop/pages/server_page.dart
@@ -77,14 +77,20 @@ class _DesktopServerPageState extends State<DesktopServerPage>
         ChangeNotifierProvider.value(value: gFFI.chatModel),
       ],
       child: Consumer<ServerModel>(
-        builder: (context, serverModel, child) => Container(
-          decoration: BoxDecoration(
-              border: Border.all(color: MyTheme.color(context).border!)),
-          child: Scaffold(
+        builder: (context, serverModel, child) {
+          final body = Scaffold(
             backgroundColor: Theme.of(context).scaffoldBackgroundColor,
             body: ConnectionManager(),
-          ),
-        ),
+          );
+          return isLinux
+              ? buildVirtualWindowFrame(context, body)
+              : Container(
+                  decoration: BoxDecoration(
+                      border:
+                          Border.all(color: MyTheme.color(context).border!)),
+                  child: body,
+                );
+        },
       ),
     );
   }
diff --git a/flutter/lib/desktop/screen/desktop_file_transfer_screen.dart b/flutter/lib/desktop/screen/desktop_file_transfer_screen.dart
index 694f18ace..f76603337 100644
--- a/flutter/lib/desktop/screen/desktop_file_transfer_screen.dart
+++ b/flutter/lib/desktop/screen/desktop_file_transfer_screen.dart
@@ -20,6 +20,7 @@ class DesktopFileTransferScreen extends StatelessWidget {
         ChangeNotifierProvider.value(value: gFFI.canvasModel),
       ],
       child: Scaffold(
+        backgroundColor: isLinux ? Colors.transparent : null,
         body: FileManagerTabPage(
           params: params,
         ),
diff --git a/flutter/lib/desktop/screen/desktop_port_forward_screen.dart b/flutter/lib/desktop/screen/desktop_port_forward_screen.dart
index c7c163a57..c586a5837 100644
--- a/flutter/lib/desktop/screen/desktop_port_forward_screen.dart
+++ b/flutter/lib/desktop/screen/desktop_port_forward_screen.dart
@@ -17,6 +17,7 @@ class DesktopPortForwardScreen extends StatelessWidget {
         ChangeNotifierProvider.value(value: gFFI.ffiModel),
       ],
       child: Scaffold(
+        backgroundColor: isLinux ? Colors.transparent : null,
         body: PortForwardTabPage(
           params: params,
         ),
diff --git a/flutter/lib/desktop/widgets/tabbar_widget.dart b/flutter/lib/desktop/widgets/tabbar_widget.dart
index 0f13ce2d9..431379b2a 100644
--- a/flutter/lib/desktop/widgets/tabbar_widget.dart
+++ b/flutter/lib/desktop/widgets/tabbar_widget.dart
@@ -548,6 +548,16 @@ class WindowActionPanelState extends State<WindowActionPanel>
     setState(() {});
   }
 
+  @override
+  void onWindowFocus() {
+    stateGlobal.isFocused.value = true;
+  }
+
+  @override
+  void onWindowBlur() {
+    stateGlobal.isFocused.value = false;
+  }
+
   @override
   void onWindowMinimize() {
     stateGlobal.setMinimized(true);
diff --git a/flutter/lib/main.dart b/flutter/lib/main.dart
index 3df2e04b8..2089d525e 100644
--- a/flutter/lib/main.dart
+++ b/flutter/lib/main.dart
@@ -440,6 +440,9 @@ class _AppState extends State<App> {
                   if (isDesktop && desktopType == DesktopType.main) {
                     child = keyListenerBuilder(context, child);
                   }
+                  if (isLinux) {
+                    child = buildVirtualWindowFrame(context, child);
+                  }
                   return child;
                 },
         ),
diff --git a/flutter/lib/models/state_model.dart b/flutter/lib/models/state_model.dart
index 58e216c34..f32cbe2d9 100644
--- a/flutter/lib/models/state_model.dart
+++ b/flutter/lib/models/state_model.dart
@@ -20,6 +20,7 @@ class StateGlobal {
   final svcStatus = SvcStatus.notReady.obs;
   // Only used for macOS
   bool? closeOnFullscreen;
+  final RxBool isFocused = false.obs;
 
   String _inputSource = '';
 
diff --git a/flutter/linux/my_application.cc b/flutter/linux/my_application.cc
index b96c16f3f..56b85ccae 100644
--- a/flutter/linux/my_application.cc
+++ b/flutter/linux/my_application.cc
@@ -21,7 +21,6 @@ static void my_application_activate(GApplication* application) {
   MyApplication* self = MY_APPLICATION(application);
   GtkWindow* window =
       GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
-  // we have custom window frame
   gtk_window_set_decorated(window, FALSE);
   // try setting icon for rustdesk, which uses the system cache 
   GtkIconTheme* theme = gtk_icon_theme_get_default();
@@ -75,12 +74,7 @@ static void my_application_activate(GApplication* application) {
 
   FlView* view = fl_view_new(project);
   gtk_widget_show(GTK_WIDGET(view));
-  
-  auto border_frame = gtk_frame_new(nullptr);
-  gtk_frame_set_shadow_type(GTK_FRAME(border_frame), GTK_SHADOW_ETCHED_IN);
-  gtk_container_add(GTK_CONTAINER(border_frame), GTK_WIDGET(view));
-  gtk_widget_show(GTK_WIDGET(border_frame));
-  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(border_frame));
+  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
 
   fl_register_plugins(FL_PLUGIN_REGISTRY(view));