cores

Não sei se fiz da melhor forma, porem deu certo kkkkkk tbm n tá o codigo todo aq pq n cabe, mas da pra entender

aq tão as variáveis e a função de troca de cores

import 'package:flutter/material.dart';

import 'difficulty.dart';

class Task extends StatefulWidget  {
  final String nome;
  final String image;
  final int dificultyLevel;
  final bool isOpacityVisible;

  const Task(this.nome, this.image, this.dificultyLevel, this.isOpacityVisible, {super.key});

  @override
  State<Task> createState() => _TaskState();
}

class _TaskState extends State<Task> {
  var nivel = 0;
  int constantNivel = 0;
  bool levelMax = false;



  maestryColor(){
    if(constantNivel >= widget.dificultyLevel * 10 && constantNivel < widget.dificultyLevel * 20){
      return Colors.green;
    } else if(constantNivel >= widget.dificultyLevel * 20 && constantNivel < widget.dificultyLevel * 30){
      return Colors.amberAccent;
    }else if(constantNivel >= widget.dificultyLevel * 30 && constantNivel < widget.dificultyLevel * 40){
      return Colors.orange;
    }else if(constantNivel >= widget.dificultyLevel * 40 && constantNivel < widget.dificultyLevel * 50){
      return Colors.red;
    }else if(constantNivel >= widget.dificultyLevel * 50 && constantNivel < widget.dificultyLevel * 60){
      return Colors.purple;
    }else if(constantNivel >= widget.dificultyLevel * 60){
      return Colors.black;
    }else {
      return Colors.blueGrey;
    }
  }

o container com a cor da função maestryColor()

Container(
          height: 140,
          decoration: BoxDecoration(
            borderRadius: BorderRadius.circular(4),
            color: maestryColor(),
          ),
        ),

o button

 child: ElevatedButton(
                          onPressed: () {
                            setState(() {
                              nivel++;
                              constantNivel++;
                              if(nivel == widget.dificultyLevel * 10){
                                nivel = 0;
                              }else if(constantNivel >= widget.dificultyLevel * 60){
                                levelMax = true;
                              }
                            });
                          },
                          style: ElevatedButton.styleFrom(
                            shape: RoundedRectangleBorder(
                              borderRadius: BorderRadius.circular(
                                  10.0),
                            ),
                          ),

aqui mostra o nível

Padding(
                    padding: const EdgeInsets.all(6.0),
                    child: Text(
                      //"Nível: $nivel",
                      style: const TextStyle(color: Colors.white, fontSize: 20),
                      levelMax ? 'MAX' : 'Nivel: $nivel',
                    ),
                  ),