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

1579 out of 2258 API elements (69.9 %) have documentation comments.

Some symbols that are missing documentation: ui_ex, ui_ex.AnimationAlwaysStoppedAnimationEx, ui_ex.AnimationAnimationMaxEx, ui_ex.AnimationAnimationMeanEx, ui_ex.AnimationAnimationMinEx.

10/10 points: Package has an example

0/20 points: Supports 0 of 6 possible platforms (iOS, Android, Web, Windows, macOS, Linux)

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

Found 700 issues. Showing the first 2:

   ╷
39 │         child: this,
   │                ^^^^
   ╵

   ╷
25 │         isAlwaysShown: isAlwaysShown,
   │         ^^^^^^^^^^^^^
   ╵

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To reproduce run dart pub outdated --no-dev-dependencies --up-to-date --no-dependency-overrides.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 66 errors:

• ARGUMENT_TYPE_NOT_ASSIGNABLE - lib/src/cupertino/dialog_ex.dart:39:16 - The argument type 'T' can't be assigned to the parameter type 'Widget'.
• UNDEFINED_NAMED_PARAMETER - lib/src/cupertino/scrollbar_ex.dart:25:9 - The named parameter 'isAlwaysShown' isn't defined.
• ARGUMENT_TYPE_NOT_ASSIGNABLE - lib/src/cupertino/sliding_segmented_control_ex.dart:17:19 - The argument type 'Map<T, Widget>' can't be assigned to the parameter type 'Map<Object, Widget>'.

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.