Provide a concise title for your issue, e.g., "Error: The getter 'backgroundColor' isn't defined for the class 'ThemeData'".

[aliabdelmoaty]

Description

I encountered an error when using the persistent_bottom_nav_bar package. The error message is as follows:

/C:/Users/username/AppData/Local/Pub/Cache/hosted/pub.dev/persistent_bottom_nav_bar-5.0.2/lib/neumorphic_package_by_serge_software/neumorphic_card.dart:57:57: Error: The getter 'backgroundColor' isn't defined for the class 'ThemeData'.
 - 'ThemeData' is from 'package:flutter/src/material/theme_data.dart' ('../../flutter%20system/flutter/packages/flutter/lib/src/material/theme_data.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'backgroundColor'.
    final color = decoration.color ?? Theme.of(context).backgroundColor;
                                                        ^^^^^^^^^^^^^^^

Steps to Reproduce

1. Add persistent_bottom_nav_bar version 5.0.2 to your pubspec.yaml.
2. Run the application on an Android or iOS device.
3. Observe the error during the build process.

Suggested Fix

The issue is due to the use of the backgroundColor property, which does not exist in the ThemeData class. Instead, scaffoldBackgroundColor should be used.

In the neumorphic_card.dart file, replace:

final color = decoration.color ?? Theme.of(context).backgroundColor;

with:

final color = decoration.color ?? Theme.of(context).scaffoldBackgroundColor;

Environment

• Flutter version: 3.22.2
• Dart version: 3.4.3
• Package version: 5.0.2

Thank you!

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