[BUG] MapOptions.backgroundColor doesn't get updated on rebuilds

[lonelyteapot]

What is the bug?

When the backgroundColor passed to FlutterMap.options changes, the actual displayed color does not update.

How can we reproduce it?

import 'dart:math';

import 'package:flutter/material.dart';
import 'package:flutter_map/flutter_map.dart';

void main() {
  runApp(const MainApp());
}

class MainApp extends StatefulWidget {
  const MainApp({super.key});

  @override
  State<MainApp> createState() => _MainAppState();
}

class _MainAppState extends State<MainApp> {
  Color backgroundColor = Colors.green;

  void randomizeBackgroundColor() {
    setState(() {
      backgroundColor =
          Colors.primaries[Random().nextInt(Colors.primaries.length)];
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: FlutterMap(
        options: MapOptions(
          backgroundColor: backgroundColor,
        ),
        nonRotatedChildren: [
          Center(
            child: ElevatedButton(
              onPressed: randomizeBackgroundColor,
              child: Text(
                'Color: #${backgroundColor.value.toRadixString(16)}\n'
                'Press to randomize',
              ),
            ),
          ),
        ],
      ),
    );
  }
}

Do you have a potential solution?

No response

Platforms

flutter_map 6.0.0-dev.3. Android, Web.

Severity

Minimum: Allows normal functioning