Pierre-Louis be3802c922
Add support for fill, weight, grade, and optical size to Icon (#106896)
* wip

* update documentation

* x

* remove trailing spaces

* x

* remove useless CupertinoIconThemeData copyWith override

* add tests

* remove trailing spaces

* fix isConcrete

* x

* x

* x

* remove trailing spaces

* tweak docs

* mention that font filenames often indicate the supported axes

* add back cupertino IconThemeData copyWith

* update copyWith
2022-07-19 21:27:45 -04:00
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