10/10 points: Provide a valid pubspec.yaml

5/5 points: Provide a valid README.md

5/5 points: Provide a valid CHANGELOG.md

10/10 points: Use an OSI-approved license

Detected license: MIT.

10/10 points: 20% or more of the public API has dartdoc comments

380 out of 385 API elements (98.7 %) have documentation comments.

Some symbols that are missing documentation: Animation, Flutter drop-in replacement, fleet, fleet.AnimatableParameterHost.AnimatableParameterHost.new, modifiers.

10/10 points: Package has an example

20/20 points: Supports 6 of 6 possible platforms (iOS, Android, Web, Windows, macOS, Linux)

• ✓ Android

• ✓ iOS

• ✓ Windows

• ✓ Linux

• ✓ macOS

• ✓ Web

0/50 points: code has no errors, warnings, lints, or formatting issues

Found 4 issues. Showing the first 2:

    ╷
513 │     properties.add(EnumProperty('curve', curve));
    │                    ^^^^^^^^^^^^
    ╵

    ╷
513 │     properties.add(EnumProperty('curve', curve));
    │                    ^^^^^^^^^^^^
    ╵

10/10 points: All of the package dependencies are supported in the latest version

To reproduce run dart pub outdated --no-dev-dependencies --up-to-date --no-dependency-overrides.

10/10 points: Package supports latest stable Dart and Flutter SDKs

0/20 points: Compatible with dependency constraint lower bounds

downgrade analysis failed failed with 3 errors:

• COULD_NOT_INFER - lib/src/animation/animation.dart:513:20 - Couldn't infer type parameter 'T'.\n\nTried to infer 'Curve' for 'T' which doesn't work:\n Type parameter 'T' is declared to extend 'Enum?' producing 'Enum?'.\nThe type 'Curve' was inferred from:\n Parameter 'value' declared as 'T?'\n but argument is 'Curve'.\n\nConsider passing explicit type argument(s) to the generic.\n\n
• TYPE_ARGUMENT_NOT_MATCHING_BOUNDS - lib/src/animation/animation.dart:513:20 - 'Curve' doesn't conform to the bound 'Enum?' of the type parameter 'T'.
• INVALID_ASSIGNMENT - lib/src/animation/parameter.dart:550:27 - A value of type 'ValueListenable

Run flutter pub downgrade and then flutter analyze to reproduce the above problem.

You may run dart pub upgrade --tighten to update your dependency constraints, see dart.dev/go/downgrade-testing for details.