![Feature request: Distinguishable `class`, `mixin`, `abstract class` syntax highlighting · Issue #36450 · dart-lang/sdk · GitHub Feature request: Distinguishable `class`, `mixin`, `abstract class` syntax highlighting · Issue #36450 · dart-lang/sdk · GitHub](https://user-images.githubusercontent.com/5468398/55455233-7d6b5980-5615-11e9-8cef-161adc2f5547.png)
Feature request: Distinguishable `class`, `mixin`, `abstract class` syntax highlighting · Issue #36450 · dart-lang/sdk · GitHub
![flutter - "Class 'CustomProfile' can't define method 'createState' and have field 'StatefulWidget.createState with the same name - Stack Overflow flutter - "Class 'CustomProfile' can't define method 'createState' and have field 'StatefulWidget.createState with the same name - Stack Overflow](https://i.stack.imgur.com/xYRbS.png)
flutter - "Class 'CustomProfile' can't define method 'createState' and have field 'StatefulWidget.createState with the same name - Stack Overflow
![visual studio - This class inherits from a class marked as @immutable, and therefore should be immutable (all instance fields must be final) - Stack Overflow visual studio - This class inherits from a class marked as @immutable, and therefore should be immutable (all instance fields must be final) - Stack Overflow](https://i.stack.imgur.com/Tu6Pi.png)
visual studio - This class inherits from a class marked as @immutable, and therefore should be immutable (all instance fields must be final) - Stack Overflow
![Dart Tutorial #23 - Class in Dart Programming (Object Oriented Programming) & Constructors - YouTube Dart Tutorial #23 - Class in Dart Programming (Object Oriented Programming) & Constructors - YouTube](https://i.ytimg.com/vi/O1q1vaayAhQ/maxresdefault.jpg)