Missing From Flutter SDK Material Design 3 Focus Ring

Easy way to implement the Material Design 3 focus ring.

Once again, we have a situation where the Flutter SDK does not have some specific UI element called for in the Material Design 3 specification implemented. I use some standard widgets in the Flutter SDK to show how to implement the Material Design 3 focus ring.

So why pay to view this? Well, no flutter GDE is covering how to fill the holes in the Material Design 3 spec as implemented in the Flutter SDK. And, you get extra access as I do actually interact and answer specific questions.