Экран выбора страны, динамик цвета

lib/main.dart

@@ -1,3 +1,4 @@
+import 'package:dynamic_color/dynamic_color.dart';
 import 'package:flutter/material.dart';
 import 'package:google_fonts/google_fonts.dart';
 import 'package:komet/frontend/screens/auth/login_screen.dart';
@@ -9,19 +10,49 @@ void main() async {
 class MyApp extends StatelessWidget {
   const MyApp({super.key});
 
+  static const _fallbackSeed = Color(0xFFC1C4FF);
+
+  static ColorScheme _adjustScheme(ColorScheme base) {
+    return base.copyWith(
+      surface: Color.alphaBlend(
+        base.primary.withValues(alpha: 0.05),
+        const Color(0xFF0D0D14),
+      ),
+      surfaceContainerHigh: Color.alphaBlend(
+        base.primary.withValues(alpha: 0.08),
+        const Color(0xFF1A1A26),
+      ),
+      surfaceContainerHighest: Color.alphaBlend(
+        base.primary.withValues(alpha: 0.12),
+        const Color(0xFF262636),
+      ),
+    );
+  }
+
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Komet',
-      debugShowCheckedModeBanner: false,
-      theme: ThemeData(
-        useMaterial3: true,
-        brightness: Brightness.dark,
-        textTheme: GoogleFonts.interTextTheme(
-          ThemeData.dark().textTheme,
-        ),
-      ),
-      home: const LoginScreen(),
+    return DynamicColorBuilder(
+      builder: (ColorScheme? lightDynamic, ColorScheme? darkDynamic) {
+        final baseScheme = darkDynamic ?? ColorScheme.fromSeed(
+          seedColor: _fallbackSeed,
+          brightness: Brightness.dark,
+        );
+
+        final darkScheme = _adjustScheme(baseScheme);
+
+        return MaterialApp(
+          title: 'Komet',
+          debugShowCheckedModeBanner: false,
+          theme: ThemeData(
+            useMaterial3: true,
+            colorScheme: darkScheme,
+            textTheme: GoogleFonts.interTextTheme(
+              ThemeData.dark().textTheme,
+            ),
+          ),
+          home: const LoginScreen(),
+        );
+      },
     );
   }
 }