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

1174 out of 1509 API elements (77.8 %) have documentation comments.

Some symbols that are missing documentation: background_text_span, background_text_span.BackgroundTextSpan, background_text_span.BackgroundTextSpan.BackgroundTextSpan.new, background_text_span.BackgroundTextSpan.layout, barrage_display_controller.

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 192 issues. Showing the first 2:

     ╷
4953 │   void _extendSelectionByPage(ExtendSelectionByPageIntent intent) {
     │                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^
     ╵

     ╷
5120 │     ExtendSelectionByPageIntent: _makeOverridable(
     │     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
     ╵

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To reproduce run dart pub outdated --no-dev-dependencies --up-to-date --no-dependency-overrides.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 31 errors:

• UNDEFINED_CLASS - lib/third_party/extended_text_field/src/official/widgets/editable_text.dart:4953:31 - Undefined class 'ExtendSelectionByPageIntent'.
• UNDEFINED_IDENTIFIER - lib/third_party/extended_text_field/src/official/widgets/editable_text.dart:5120:5 - Undefined name 'ExtendSelectionByPageIntent'.
• NON_TYPE_AS_TYPE_ARGUMENT - lib/third_party/extended_text_field/src/official/widgets/editable_text.dart:5121:24 - The name 'ExtendSelectionByPageIntent' isn't a type, so it can't be used as a type argument.

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.