I know that dart:ui contains "Built-in types and core primitives for a Flutter application". I'd like to use Color and other functionality from this package (computeLuminance) in a command-line (Dart) application that converts some data files.
(I would also like to use estimateBrightnessForColor from Flutter Material, but I guess this is even harder, or impossible.)
I'm using the Dart SDK that is bundled with the Flutter SDK.
import 'dart:io';
import 'dart:ui';
I get Error: Not found: 'dart:ui'
As a side note, I can import and use dart:ui on DartPad.