update

lib/widgets/page_background_widget.dart

@@ -0,0 +1,30 @@
+import 'package:flutter/material.dart';
+
+class PageBackgroundWidget extends StatelessWidget {
+  final Widget child;
+
+  const PageBackgroundWidget({super.key, required this.child});
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+        alignment: Alignment.center,
+        height: MediaQuery.of(context).size.height,
+        decoration: const BoxDecoration(
+          gradient: RadialGradient(
+            tileMode: TileMode.clamp,
+            colors: [
+              Color.fromRGBO(132, 84, 125, 1),
+              Color.fromRGBO(96, 48, 90, 1),
+              Color.fromRGBO(77, 29, 73, 1),
+              // Color.fromRGBO(241, 220, 223, 1),
+            ],
+            // begin: Alignment.topCenter,
+            // end: Alignment.bottomCenter,
+          ),
+        ),
+        child: Center(
+          child: child,
+        ));
+  }
+}