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: Apache-2.0.

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

37 out of 39 API elements (94.9 %) have documentation comments.

Some symbols that are missing documentation: flutter_fractal, flutter_fractal.TurtleGraphic.TurtleGraphic.new.

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 24 issues. Showing the first 2:

   ╷
11 │ class TurtleGraphic extends Path {
   │       ^^^^^^^^^^^^^
   ╵

   ╷
11 │ class TurtleGraphic extends Path {
   │                             ^^^^
   ╵

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

No dependencies.

To reproduce run dart pub outdated --no-dev-dependencies --up-to-date --no-dependency-overrides.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 5 errors:

• NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER - lib/src/turtle_graphic.dart:11:7 - Missing concrete implementations of 'abstract class Path.addArc', 'abstract class Path.addOval', 'abstract class Path.addPath', 'abstract class Path.addPolygon', and 23 more.
• NO_GENERATIVE_CONSTRUCTORS_IN_SUPERCLASS - lib/src/turtle_graphic.dart:11:29 - The class 'TurtleGraphic' can't extend 'Path' because 'Path' only has factory constructors (no generative constructors), and 'TurtleGraphic' has at least one generative constructor.
• ABSTRACT_SUPER_MEMBER_REFERENCE - lib/src/turtle_graphic.dart:22:11 - The method 'moveTo' is always abstract in the supertype.

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.