💄 Use system color scheme

lib/main.dart

@@ -29,10 +29,11 @@ class GoMixClient extends StatelessWidget {
           showValueIndicator: ShowValueIndicator.always,
         ),
       ),
-      // darkTheme: ThemeData(
-      //     useMaterial3: true,
-      //     colorScheme: ColorScheme.fromSeed(
-      //         seedColor: Colors.greenAccent, brightness: Brightness.dark)),
+      darkTheme: ThemeData(
+          useMaterial3: true,
+          colorScheme: ColorScheme.fromSeed(
+              seedColor: Colors.greenAccent, brightness: Brightness.dark)),
+      themeMode: ThemeMode.system,
       home: const GoMixHome(),
     );
   }