feat: Material 3

lib/color_schemes.g.dart

@@ -0,0 +1,69 @@
+import 'package:flutter/material.dart';
+
+const lightColorScheme = ColorScheme(
+  brightness: Brightness.light,
+  primary: Color(0xFF5F52A7),
+  onPrimary: Color(0xFFFFFFFF),
+  primaryContainer: Color(0xFFE5DEFF),
+  onPrimaryContainer: Color(0xFF1A0261),
+  secondary: Color(0xFF5F5C71),
+  onSecondary: Color(0xFFFFFFFF),
+  secondaryContainer: Color(0xFFE5DFF9),
+  onSecondaryContainer: Color(0xFF1C192B),
+  tertiary: Color(0xFF763EC3),
+  onTertiary: Color(0xFFFFFFFF),
+  tertiaryContainer: Color(0xFFEDDCFF),
+  onTertiaryContainer: Color(0xFF290056),
+  error: Color(0xFFBA1A1A),
+  errorContainer: Color(0xFFFFDAD6),
+  onError: Color(0xFFFFFFFF),
+  onErrorContainer: Color(0xFF410002),
+  background: Color(0xFFFFFBFF),
+  onBackground: Color(0xFF1C1B1F),
+  surface: Color(0xFFFFFBFF),
+  onSurface: Color(0xFF1C1B1F),
+  surfaceVariant: Color(0xFFE5E0EC),
+  onSurfaceVariant: Color(0xFF48454E),
+  outline: Color(0xFF79767F),
+  onInverseSurface: Color(0xFFF4EFF4),
+  inverseSurface: Color(0xFF313033),
+  inversePrimary: Color(0xFFC8BFFF),
+  shadow: Color(0xFF000000),
+  surfaceTint: Color(0xFF5F52A7),
+  outlineVariant: Color(0xFFC9C5D0),
+  scrim: Color(0xFF000000),
+);
+
+const darkColorScheme = ColorScheme(
+  brightness: Brightness.dark,
+  primary: Color(0xFFC8BFFF),
+  onPrimary: Color(0xFF302175),
+  primaryContainer: Color(0xFF473A8D),
+  onPrimaryContainer: Color(0xFFE5DEFF),
+  secondary: Color(0xFFC9C3DC),
+  onSecondary: Color(0xFF312E41),
+  secondaryContainer: Color(0xFF484459),
+  onSecondaryContainer: Color(0xFFE5DFF9),
+  tertiary: Color(0xFFD7BAFF),
+  onTertiary: Color(0xFF440088),
+  tertiaryContainer: Color(0xFF5D20A9),
+  onTertiaryContainer: Color(0xFFEDDCFF),
+  error: Color(0xFFFFB4AB),
+  errorContainer: Color(0xFF93000A),
+  onError: Color(0xFF690005),
+  onErrorContainer: Color(0xFFFFDAD6),
+  background: Color(0xFF1C1B1F),
+  onBackground: Color(0xFFE5E1E6),
+  surface: Color(0xFF1C1B1F),
+  onSurface: Color(0xFFE5E1E6),
+  surfaceVariant: Color(0xFF48454E),
+  onSurfaceVariant: Color(0xFFC9C5D0),
+  outline: Color(0xFF938F99),
+  onInverseSurface: Color(0xFF1C1B1F),
+  inverseSurface: Color(0xFFE5E1E6),
+  inversePrimary: Color(0xFF5F52A7),
+  shadow: Color(0xFF000000),
+  surfaceTint: Color(0xFFC8BFFF),
+  outlineVariant: Color(0xFF48454E),
+  scrim: Color(0xFF000000),
+);

lib/main.dart

@@ -17,7 +17,7 @@ import 'package:timezone/timezone.dart' as tz;
 
 import 'lang/lang.dart';
 import 'lang/lang_en.dart';
-
+import 'color_schemes.g.dart';
 /*
 Copyright (C) 2022  Matyáš Caras a přispěvatelé
 
@@ -135,13 +135,11 @@ class MyApp extends StatelessWidget {
             ],
             supportedLocales: const [Locale("cs", ""), Locale("en", "")],
             title: "OpenCanteen",
-            theme: ThemeData(
+            theme: ThemeData(useMaterial3: true, colorScheme: lightColorScheme),
-              primarySwatch: Colors.purple,
-            ),
             darkTheme: ThemeData(
-              brightness: Brightness.dark,
+                brightness: Brightness.dark,
-              primarySwatch: Colors.purple,
+                useMaterial3: true,
-            ),
+                colorScheme: darkColorScheme),
             home: const LoginPage(),
           )
         : const CupertinoApp(