diff --git a/example/pubspec.lock b/example/pubspec.lock
index 7062458..d9807c5 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -5,10 +5,10 @@ packages:
     dependency: transitive
     description:
       name: async
-      sha256: bfe67ef28df125b7dddcea62755991f807aa39a2492a23e1550161692950bbe0
+      sha256: "947bfcf187f74dbc5e146c9eb9c0f10c9f8b30743e341481c1e2ed3ecc18c20c"
       url: "https://pub.dev"
     source: hosted
-    version: "2.10.0"
+    version: "2.11.0"
   boolean_selector:
     dependency: transitive
     description:
@@ -21,10 +21,10 @@ packages:
     dependency: transitive
     description:
       name: characters
-      sha256: e6a326c8af69605aec75ed6c187d06b349707a27fbff8222ca9cc2cff167975c
+      sha256: "04a925763edad70e8443c99234dc3328f442e811f1d8fd1a72f1c8ad0f69a605"
       url: "https://pub.dev"
     source: hosted
-    version: "1.2.1"
+    version: "1.3.0"
   clock:
     dependency: transitive
     description:
@@ -37,10 +37,10 @@ packages:
     dependency: transitive
     description:
       name: collection
-      sha256: cfc915e6923fe5ce6e153b0723c753045de46de1b4d63771530504004a45fae0
+      sha256: f092b211a4319e98e5ff58223576de6c2803db36221657b46c82574721240687
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.0"
+    version: "1.17.2"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -81,7 +81,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.4.0"
+    version: "0.5.0"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -91,18 +91,10 @@ packages:
     dependency: transitive
     description:
       name: intl
-      sha256: "910f85bce16fb5c6f614e117efa303e85a1731bb0081edf3604a2ae6e9a3cc91"
+      sha256: "3bc132a9dbce73a7e4a21a17d06e1878839ffbf975568bc875c60537824b0c4d"
       url: "https://pub.dev"
     source: hosted
-    version: "0.17.0"
-  js:
-    dependency: transitive
-    description:
-      name: js
-      sha256: "5528c2f391ededb7775ec1daa69e65a2d61276f7552de2b5f7b8d34ee9fd4ab7"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.6.5"
+    version: "0.18.1"
   lints:
     dependency: transitive
     description:
@@ -115,34 +107,34 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: "16db949ceee371e9b99d22f88fa3a73c4e59fd0afed0bd25fc336eb76c198b72"
+      sha256: "1803e76e6653768d64ed8ff2e1e67bea3ad4b923eb5c56a295c3e634bad5960e"
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.13"
+    version: "0.12.16"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: d92141dc6fe1dad30722f9aa826c7fbc896d021d792f80678280601aff8cf724
+      sha256: "9528f2f296073ff54cb9fee677df673ace1218163c3bc7628093e7eed5203d41"
       url: "https://pub.dev"
     source: hosted
-    version: "0.2.0"
+    version: "0.5.0"
   meta:
     dependency: transitive
     description:
       name: meta
-      sha256: "6c268b42ed578a53088d834796959e4a1814b5e9e164f147f580a386e5decf42"
+      sha256: "3c74dbf8763d36539f114c799d8a2d87343b5067e9d796ca22b5eb8437090ee3"
       url: "https://pub.dev"
     source: hosted
-    version: "1.8.0"
+    version: "1.9.1"
   path:
     dependency: transitive
     description:
       name: path
-      sha256: db9d4f58c908a4ba5953fcee2ae317c94889433e5024c27ce74a37f94267945b
+      sha256: "8829d8a55c13fc0e37127c29fedf290c102f4e40ae94ada574091fe0ff96c917"
       url: "https://pub.dev"
     source: hosted
-    version: "1.8.2"
+    version: "1.8.3"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -152,10 +144,10 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      sha256: dd904f795d4b4f3b870833847c461801f6750a9fa8e61ea5ac53f9422b31f250
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
       url: "https://pub.dev"
     source: hosted
-    version: "1.9.1"
+    version: "1.10.0"
   stack_trace:
     dependency: transitive
     description:
@@ -192,10 +184,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: ad540f65f92caa91bf21dfc8ffb8c589d6e4dc0c2267818b4cc2792857706206
+      sha256: "75760ffd7786fffdfb9597c35c5b27eaeec82be8edfb6d71d32651128ed7aab8"
       url: "https://pub.dev"
     source: hosted
-    version: "0.4.16"
+    version: "0.6.0"
   vector_math:
     dependency: transitive
     description:
@@ -204,6 +196,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.4"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: dc8ccd225a2005c1be616fe02951e2e342092edf968cf0844220383757ef8f10
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.4-beta"
 sdks:
-  dart: ">=2.18.0 <3.0.0"
+  dart: ">=3.1.0-185.0.dev <4.0.0"
   flutter: ">=1.17.0"
diff --git a/lib/src/config/registration_options.dart b/lib/src/config/registration_options.dart
index 8a1b9db..a4593b8 100644
--- a/lib/src/config/registration_options.dart
+++ b/lib/src/config/registration_options.dart
@@ -11,13 +11,16 @@ class RegistrationOptions {
     required this.registrationSteps,
     required this.afterRegistration,
     this.registrationTranslations = const RegistrationTranslations(),
+    this.onError,
     this.customAppbarBuilder,
     this.nextButtonBuilder,
     this.previousButtonBuilder,
+    this.backgroundColor,
   });
 
   final RegistrationTranslations registrationTranslations;
   final List<AuthStep> registrationSteps;
+  final VoidCallback? onError;
   final VoidCallback afterRegistration;
   final RegistrationRepository registrationRepository;
   final AppBar Function(String title)? customAppbarBuilder;
@@ -25,6 +28,7 @@ class RegistrationOptions {
       nextButtonBuilder;
   final Widget Function(VoidCallback onPressed, String label)?
       previousButtonBuilder;
+  final Color? backgroundColor;
 
   static List<AuthStep> getDefaultSteps({
     TextEditingController? emailController,
diff --git a/lib/src/registration_screen.dart b/lib/src/registration_screen.dart
index ff06dfb..8407db2 100644
--- a/lib/src/registration_screen.dart
+++ b/lib/src/registration_screen.dart
@@ -25,6 +25,9 @@ class RegistrationScreen extends StatelessWidget {
           await registrationOptions.registrationRepository.register(values);
       if (registered) {
         registrationOptions.afterRegistration();
+      } else {
+        registrationOptions.onError?.call();
+        onError();
       }
     } catch (e) {
       onError();
@@ -47,6 +50,7 @@ class RegistrationScreen extends StatelessWidget {
       previousBtnTitle: translations.previousStepBtn,
       nextButtonBuilder: registrationOptions.nextButtonBuilder,
       previousButtonBuilder: registrationOptions.previousButtonBuilder,
+      customBackgroundColor: registrationOptions.backgroundColor,
     );
   }
 }