Dev v2 message for humans

assets/translations/en.json

@@ -322,5 +322,7 @@
   "tx_ready": "The transaction is ready to be processed",
   "tx_in_block": "The transaction has been confirmed",
   "tx_broadcast": "The transaction has been sent and is being processed",
-  "tx_processing": "Processing payment"
+  "tx_processing": "Processing payment",
+  "test_network_dialog_title": "Test Duniter Network Selected",
+  "test_network_dialog_message": "You have selected a testing duniter network used mainly for development. Any transactions made here are not real and occur in a testing environment separate from the main Ğ1 network. Feel free to test."
 }

assets/translations/es.json

@@ -328,5 +328,7 @@
   "tx_processing": "Procesando pago",
   "tx_ready": "La transacción está lista para ser enviada",
   "tx_in_block": "La transacción ha sido confirmada",
-  "tx_broadcast": "La transacción ha se ha enviado y está siendo procesada"
+  "tx_broadcast": "La transacción ha se ha enviado y está siendo procesada",
+  "test_network_dialog_title": "Red duniter de pruebas seleccionada",
+  "test_network_dialog_message": "Has seleccionado una red de pruebas de duniter utilizada principalmente para el desarrollo. Cualquier transacción realizada aquí no es real y ocurre en un entorno de pruebas separado de la red Ğ1 principal. Siéntete libre de probar."
 }

lib/ui/screens/fifth_screen.dart

@@ -266,11 +266,7 @@ class _FifthScreenState extends State<FifthScreen> {
                           GetIt.instance<ServiceManager>()
                               .updateService(v2mode);
                           if (v2mode) {
-                            ScaffoldMessenger.of(context)
-                                .showSnackBar(const SnackBar(
-                              content:
-                                  Text('v2 mode activated for testing/develop'),
-                            ));
+                            _showTestNetworkDialog(context);
                           }
                         }),
                   if (state.expertMode)
@@ -332,4 +328,22 @@ class _FifthScreenState extends State<FifthScreen> {
       );
     }
   }
+
+  void _showTestNetworkDialog(BuildContext context) {
+    showDialog(
+      context: context,
+      builder: (BuildContext context) {
+        return AlertDialog(
+          title: Text(tr('test_network_dialog_title')),
+          content: Text(tr('test_network_dialog_message')),
+          actions: <Widget>[
+            TextButton(
+              onPressed: () => Navigator.of(context).pop(),
+              child: Text(tr('ok')),
+            ),
+          ],
+        );
+      },
+    );
+  }
 }