Finished Launcher

Everything is smooth and the UI is perfect

lib/src/util/os.dart

@@ -0,0 +1,14 @@
+import 'dart:io';
+
+const int appBarSize = 2;
+final RegExp _regex = RegExp(r'(?<=\(Build )(.*)(?=\))');
+
+bool get isWin11 {
+  var result = _regex.firstMatch(Platform.operatingSystemVersion)?.group(1);
+  if(result == null){
+    return false;
+  }
+
+  var intBuild = int.tryParse(result);
+  return intBuild != null && intBuild > 22000;
+}

lib/src/widget/window_border.dart

@@ -0,0 +1,28 @@
+import 'package:bitsdojo_window/bitsdojo_window.dart';
+import 'package:flutter/material.dart';
+import 'package:system_theme/system_theme.dart';
+
+import '../util/os.dart';
+
+class WindowBorder extends StatelessWidget {
+  const WindowBorder({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return IgnorePointer(
+        child: Padding(
+          padding: EdgeInsets.only(
+              top: 1 / appWindow.scaleFactor
+          ),
+          child: Container(
+          decoration: BoxDecoration(
+              borderRadius: BorderRadius.circular(10),
+              border: Border.all(
+                  color: SystemTheme.accentColor.accent,
+                  width: appBarSize.toDouble()
+              )
+          )
+          ),
+    ));
+  }
+}