Is there an existing issue for this?

• I have searched the existing issues
• I have read the guide to filing a bug

Steps to reproduce

Unable to change custom font color since I upgraded to Flutter (Channel stable, 3.10.0).

Expected results

final font1 = Theme.of(context).textTheme.bodyMedium!.copyWith(
fontSize: 22,
fontFamily: 'myFont',
height: 1.9,
color: Colors.blue, <<-- Here, the color either white or black in dark mode.
);

Actual results

Or

Code sample

TextStyle(
fontSize: 22,
fontFamily: 'myFont',
height: 1.9,
color: Colors.blue, <<-- Same result.
);

Screenshots or Video

Logs

[Paste your logs here]

Flutter Doctor output

[✓] Flutter (Channel stable, 3.10.0, on macOS 13.3.1 22E772610a darwin-x64, locale en-US)
• Flutter version 3.10.0 on channel stable at /Users/Adam/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 84a1e90 (2 days ago), 2023-05-09 07:41:44 -0700
• Engine revision d44b5a94c9
• Dart version 3.0.0
• DevTools version 2.23.1

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
• Android SDK at /Users/Adam/Library/Android/sdk
• Platform android-32, build-tools 30.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 14.3)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 14E222b
• CocoaPods version 1.12.1

[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2022.1)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)

[✓] VS Code (version 1.75.1)
• VS Code at /Users/Adam/Desktop/Visual Studio Code.app/Contents
• Flutter extension version 3.58.0

[✓] Connected device (3 available)
• Adam’s iPhone (mobile) • 00008030-00********2B802E • ios • iOS 16.4.1 20E252
• macOS (desktop) • macos • darwin-x64 • macOS 13.3.1 22E772610a darwin-x64
• Chrome (web) • chrome • web-javascript • Google Chrome 113.0.5672.92

[✓] Network resources
• All expected network resources are available.

• No issues found!