backgroundcolor migration

flutter/lib/desktop/pages/connection_page.dart

@@ -164,7 +164,7 @@ class _ConnectionPageState extends State<ConnectionPage>
       width: 320 + 20 * 2,
       padding: const EdgeInsets.fromLTRB(20, 24, 20, 22),
       decoration: BoxDecoration(
-        color: Theme.of(context).backgroundColor,
+        color: Theme.of(context).colorScheme.background,
         borderRadius: const BorderRadius.all(Radius.circular(13)),
       ),
       child: Ink(

flutter/lib/desktop/pages/desktop_home_page.dart

@@ -71,7 +71,7 @@ class _DesktopHomePageState extends State<DesktopHomePage>
       value: gFFI.serverModel,
       child: Container(
         width: 200,
-        color: Theme.of(context).backgroundColor,
+        color: Theme.of(context).colorScheme.background,
         child: DesktopScrollWrapper(
           scrollController: _leftPaneScrollController,
           child: SingleChildScrollView(
@@ -185,7 +185,7 @@ class _DesktopHomePageState extends State<DesktopHomePage>
           radius: 15,
           backgroundColor: hover.value
               ? Theme.of(context).scaffoldBackgroundColor
-              : Theme.of(context).backgroundColor,
+              : Theme.of(context).colorScheme.background,
           child: Icon(
             Icons.more_vert_outlined,
             size: 20,

flutter/lib/desktop/pages/desktop_setting_page.dart

@@ -108,7 +108,7 @@ class _DesktopSettingPageState extends State<DesktopSettingPage>
   Widget build(BuildContext context) {
     super.build(context);
     return Scaffold(
-      backgroundColor: Theme.of(context).backgroundColor,
+      backgroundColor: Theme.of(context).colorScheme.background,
       body: Row(
         children: <Widget>[
           SizedBox(

flutter/lib/desktop/pages/desktop_tab_page.dart

@@ -65,7 +65,7 @@ class _DesktopTabPageState extends State<DesktopTabPage> {
   Widget build(BuildContext context) {
     final tabWidget = Container(
         child: Scaffold(
-            backgroundColor: Theme.of(context).backgroundColor,
+            backgroundColor: Theme.of(context).colorScheme.background,
             body: DesktopTab(
               controller: tabController,
               tail: ActionIcon(

flutter/lib/desktop/pages/port_forward_page.dart

@@ -91,7 +91,7 @@ class _PortForwardPageState extends State<PortForwardPage>
                 Flexible(
                   child: Container(
                     decoration: BoxDecoration(
-                        color: Theme.of(context).backgroundColor,
+                        color: Theme.of(context).colorScheme.background,
                         border: Border.all(width: 1, color: MyTheme.border)),
                     child:
                         widget.isRDP ? buildRdp(context) : buildTunnel(context),
@@ -134,7 +134,7 @@ class _PortForwardPageState extends State<PortForwardPage>
 
     return Theme(
       data: Theme.of(context)
-          .copyWith(backgroundColor: Theme.of(context).backgroundColor),
+          .copyWith(backgroundColor: Theme.of(context).colorScheme.background),
       child: Obx(() => ListView.builder(
           controller: ScrollController(),
           itemCount: pfs.length + 2,
@@ -169,7 +169,8 @@ class _PortForwardPageState extends State<PortForwardPage>
 
     return Container(
       height: _kRowHeight,
-      decoration: BoxDecoration(color: Theme.of(context).backgroundColor),
+      decoration:
+          BoxDecoration(color: Theme.of(context).colorScheme.background),
       child: Row(children: [
         buildTunnelInputCell(context,
             controller: localPortController,
@@ -229,7 +230,7 @@ class _PortForwardPageState extends State<PortForwardPage>
                 borderSide: BorderSide(color: MyTheme.color(context).border!)),
             focusedBorder: OutlineInputBorder(
                 borderSide: BorderSide(color: MyTheme.color(context).border!)),
-            fillColor: Theme.of(context).backgroundColor,
+            fillColor: Theme.of(context).colorScheme.background,
             contentPadding: const EdgeInsets.all(10),
             hintText: hint,
             hintStyle:
@@ -251,7 +252,7 @@ class _PortForwardPageState extends State<PortForwardPage>
               ? MyTheme.currentThemeMode() == ThemeMode.dark
                   ? const Color(0xFF202020)
                   : const Color(0xFFF4F5F6)
-              : Theme.of(context).backgroundColor),
+              : Theme.of(context).colorScheme.background),
       child: Row(children: [
         text(pf.localPort.toString()),
         const SizedBox(width: _kColumn1Width),
@@ -293,7 +294,7 @@ class _PortForwardPageState extends State<PortForwardPage>
         ).marginOnly(left: _kTextLeftMargin));
     return Theme(
       data: Theme.of(context)
-          .copyWith(backgroundColor: Theme.of(context).backgroundColor),
+          .copyWith(backgroundColor: Theme.of(context).colorScheme.background),
       child: ListView.builder(
           controller: ScrollController(),
           itemCount: 2,
@@ -312,8 +313,8 @@ class _PortForwardPageState extends State<PortForwardPage>
             } else {
               return Container(
                 height: _kRowHeight,
-                decoration:
-                    BoxDecoration(color: Theme.of(context).backgroundColor),
+                decoration: BoxDecoration(
+                    color: Theme.of(context).colorScheme.background),
                 child: Row(children: [
                   Expanded(
                     child: Align(

flutter/lib/desktop/pages/port_forward_tab_page.dart

@@ -96,7 +96,7 @@ class _PortForwardTabPageState extends State<PortForwardTabPage> {
       decoration: BoxDecoration(
           border: Border.all(color: MyTheme.color(context).border!)),
       child: Scaffold(
-          backgroundColor: Theme.of(context).backgroundColor,
+          backgroundColor: Theme.of(context).colorScheme.background,
           body: DesktopTab(
             controller: tabController,
             onWindowCloseButton: () async {

flutter/lib/desktop/pages/remote_page.dart

@@ -225,7 +225,7 @@ class _RemotePageState extends State<RemotePage>
 
   Widget buildBody(BuildContext context) {
     return Scaffold(
-      backgroundColor: Theme.of(context).backgroundColor,
+      backgroundColor: Theme.of(context).colorScheme.background,
 
       /// the Overlay key will be set with _blockableOverlayState in BlockableOverlay
       /// see override build() in [BlockableOverlay]

flutter/lib/desktop/pages/remote_tab_page.dart

@@ -141,7 +141,7 @@ class _ConnectionTabPageState extends State<ConnectionTabPage> {
               width: stateGlobal.windowBorderWidth.value),
         ),
         child: Scaffold(
-          backgroundColor: Theme.of(context).backgroundColor,
+          backgroundColor: Theme.of(context).colorScheme.background,
           body: DesktopTab(
             controller: tabController,
             onWindowCloseButton: handleWindowCloseButton,

flutter/lib/desktop/pages/server_page.dart

@@ -49,10 +49,7 @@ class _DesktopServerPageState extends State<DesktopServerPage>
 
   @override
   void onWindowClose() {
-    Future.wait([
-      gFFI.serverModel.closeAll(),
-      gFFI.close()
-    ]).then((_)  {
+    Future.wait([gFFI.serverModel.closeAll(), gFFI.close()]).then((_) {
       if (Platform.isMacOS) {
         RdPlatformChannel.instance.terminate();
       } else {
@@ -82,7 +79,7 @@ class _DesktopServerPageState extends State<DesktopServerPage>
                 decoration: BoxDecoration(
                     border: Border.all(color: MyTheme.color(context).border!)),
                 child: Scaffold(
-                  backgroundColor: Theme.of(context).backgroundColor,
+                  backgroundColor: Theme.of(context).colorScheme.background,
                   body: Center(
                     child: Column(
                       mainAxisAlignment: MainAxisAlignment.start,
@@ -189,7 +186,7 @@ class ConnectionManagerState extends State<ConnectionManager> {
                 windowManager.startDragging();
               },
               child: Container(
-                color: Theme.of(context).backgroundColor,
+                color: Theme.of(context).colorScheme.background,
               ),
             ),
           ),