Creada pantalla principal, esperando a hacerla más bonita

lib/paginas/pantalla_principal.dart

+import 'package:flutter/material.dart';
+import 'package:peponator/paginas/paginas.dart';
+
+class PantallaPrincipal extends StatelessWidget {
+
+  const PantallaPrincipal({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+      child: Column(
+        children: [
+          TextButton(
+              onPressed: () => Navigator.push(
+                  context,
+                  MaterialPageRoute(
+                      builder: (BuildContext context) => PantallaJuego()
+                  )
+                ),
+              child: Text('Jugar')
+          ),
+          TextButton(
+              onPressed: () =>
+                Navigator.push(
+                  context,
+                  MaterialPageRoute(
+                    builder: (BuildContext context) => PantallaDificultad()
+                  )
+                ),
+              child: Text('Dificultad')
+          ),
+          TextButton(
+              onPressed: () =>
+                  Navigator.push(
+                      context,
+                      MaterialPageRoute(
+                          builder: (BuildContext context) => PantallaRecords()
+                      )
+                  ),
+              child: Text('Récords')
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/peponator_app.dart

 import 'package:flutter/material.dart';
 import 'package:peponator/modelo/listaDificultad.dart';
+import 'package:peponator/paginas/pantalla_principal.dart';
 import 'package:provider/provider.dart';
 import 'package:peponator/paginas/paginas.dart';
 import 'package:peponator/l10n/app_localizations.dart';
@@ -23,7 +24,7 @@ class PeponatorApp extends StatelessWidget {
           supportedLocales: AppLocalizations.supportedLocales,
           darkTheme: ThemeData.dark(),
           themeMode: ThemeMode.system,
-          home: PantallaJuego(),
+          home: PantallaPrincipal(),
         ),
     );
   }