Add diagram of Curves.fastEaseInToSlowEaseOut - #211

@MitchellGoodwin, I think this can be merged now, since changes just landed on stable.

@MitchellGoodwin, I think this can be merged now, since changes just landed on stable.

Yes, I'm not sure if the checks pick it up right away, but it should be good to go. Can you rebase to restart the tests?

I think they fail because Flutter 3.10 uses Dart 3 which doesn't allow unsound null safety and some of the codebase here is written without null safety - thus preventing tests from using latest stable?
Though, I am not sure if that's the case.

Ok, I think I found the issue, .cirrus.yml specifies to use dev Flutter channel for CI, which has been retired.
I changed it to master, but this caused a whole chain of problems:

1. flutter format has been deprecated and insists on using dart format, this requires bumping flutter_plugin_tools version to at least 0.13.2+1.
2. The new version of flutter_plugin_tools complains about formatting in several files, missing license and incorrect pubspec.yaml in one of the packages.
3. On Flutter 3.10 ui.window is deprecated, so ~40 lines of code need to be migrated to the new API.
4. Several constructors are missing const keyword, but that's an easy fix with dart fix.
5. Several lines must be modified to enable full sound null safety.

I created a draft PR addressing most of these issues: #215

@ivirtex can you rebase to see if the update to 3.0 fixes the tests?

Looks like it passes the tests, but also it needs to have it's head changed to 'main' instead of 'master_archived'

@MitchellGoodwin Thanks for reviewing. I can't merge by myself, so I think you, or someone else, must merge this PR manually.