Getting a color in between a scale in Dart/Flutter

lerp_colors.dart

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

const totalColorsToShow = 50;
const startColor = Colors.red;
const finalColor = Colors.green;

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: const Text('Lerping colors')),
        body: ListView(
          children: List<double>.generate(totalColorsToShow, (i) => i / totalColorsToShow).map((e) {
            final color = HSVColor.lerp(HSVColor.fromColor(startColor), HSVColor.fromColor(finalColor), e)?.toColor();
            return ListTile(
              title: Text('scale $e/1, ${color.toString()}'),
              tileColor: color,
            );
          }).toList()
        ),
      ),
    );
  }
}