diff --git a/lib/domain/entities/settings.dart b/lib/domain/entities/settings.dart
index 5e8f466..7e83ebd 100644
--- a/lib/domain/entities/settings.dart
+++ b/lib/domain/entities/settings.dart
@@ -12,6 +12,7 @@ class Settings {
   /// Band pass low cut
   final double bandPassLowCutOff;
 
+  /// Copy with method
   Settings copyWith({
     double? bandPassHighCutOff,
     double? bandPassLowCutOff,
diff --git a/lib/presentation/widgets/settings_dialog.dart b/lib/presentation/widgets/settings_dialog.dart
index 66b273d..6ddfbf6 100644
--- a/lib/presentation/widgets/settings_dialog.dart
+++ b/lib/presentation/widgets/settings_dialog.dart
@@ -14,73 +14,77 @@ class SettingsDialog extends ConsumerWidget {
   Widget build(BuildContext context, WidgetRef ref) {
     final settings = ref.watch(settingsNotifierProvider);
     final settingsNotifier = ref.read(settingsNotifierProvider.notifier);
-    return settings.when(data: (data) {
-      _bandPassHighCutOffController.text = data.bandPassHighCutOff.toString();
-      _bandPassLowCutOffController.text = data.bandPassLowCutOff.toString();
-      return AlertDialog(
-        title: const Text('Settings'),
-        content: Column(
-          mainAxisSize: MainAxisSize.min,
-          children: <Widget>[
-            TextField(
-              controller: _bandPassHighCutOffController,
-              decoration: const InputDecoration(
-                labelText: 'Band Pass High Cut Off',
+    return settings.when(
+      data: (data) {
+        _bandPassHighCutOffController.text = data.bandPassHighCutOff.toString();
+        _bandPassLowCutOffController.text = data.bandPassLowCutOff.toString();
+        return AlertDialog(
+          title: const Text('Settings'),
+          content: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: <Widget>[
+              TextField(
+                controller: _bandPassHighCutOffController,
+                decoration: const InputDecoration(
+                  labelText: 'Band Pass High Cut Off',
+                ),
+                keyboardType: TextInputType.number,
               ),
-              keyboardType: TextInputType.number,
-            ),
-            TextField(
-              controller: _bandPassLowCutOffController,
-              decoration: const InputDecoration(
-                labelText: 'Band Pass Low Cut Off',
+              TextField(
+                controller: _bandPassLowCutOffController,
+                decoration: const InputDecoration(
+                  labelText: 'Band Pass Low Cut Off',
+                ),
+                keyboardType: TextInputType.number,
               ),
-              keyboardType: TextInputType.number,
+            ],
+          ),
+          actions: <Widget>[
+            TextButton(
+              onPressed: () {
+                Navigator.of(context).pop();
+              },
+              child: const Text('Cancel'),
+            ),
+            TextButton(
+              onPressed: () async {
+                final newSettings = data.copyWith(
+                  bandPassHighCutOff:
+                      double.tryParse(_bandPassHighCutOffController.text),
+                  bandPassLowCutOff:
+                      double.tryParse(_bandPassLowCutOffController.text),
+                );
+                final result = await settingsNotifier.saveSettings(newSettings);
+                result.fold(
+                  (failure) {
+                    ScaffoldMessenger.of(context).showSnackBar(
+                      SnackBar(
+                        content: Text(failure.message),
+                      ),
+                    );
+                  },
+                  (_) {
+                    Navigator.of(context).pop();
+                  },
+                );
+              },
+              child: const Text('Confirm'),
             ),
           ],
-        ),
-        actions: <Widget>[
-          TextButton(
-            onPressed: () {
-              Navigator.of(context).pop();
-            },
-            child: const Text('Cancel'),
-          ),
-          TextButton(
-            onPressed: () async {
-              final newSettings = data.copyWith(
-                bandPassHighCutOff:
-                    double.tryParse(_bandPassHighCutOffController.text),
-                bandPassLowCutOff:
-                    double.tryParse(_bandPassLowCutOffController.text),
-              );
-              final result = await settingsNotifier.saveSettings(newSettings);
-              result.fold(
-                (failure) {
-                  ScaffoldMessenger.of(context).showSnackBar(
-                    SnackBar(
-                      content: Text(failure.message),
-                    ),
-                  );
-                },
-                (_) {
-                  Navigator.of(context).pop();
-                },
-              );
-            },
-            child: const Text('Confirm'),
-          ),
-        ],
-      );
-    }, error: (e, s) {
-      return AlertDialog(
-        title: const Text('Error'),
-        content: Text(e.toString()),
-      );
-    }, loading: () {
-      return const AlertDialog(
-        title: Text('Loading'),
-        content: Center(child: CircularProgressIndicator()),
-      );
-    });
+        );
+      },
+      error: (e, s) {
+        return AlertDialog(
+          title: const Text('Error'),
+          content: Text(e.toString()),
+        );
+      },
+      loading: () {
+        return const AlertDialog(
+          title: Text('Loading'),
+          content: Center(child: CircularProgressIndicator()),
+        );
+      },
+    );
   }
 }