Creating a Color Class in flutter

Question

I'm trying to create a color class in Flutter, My main objective, is that I will be able to access the colors from this class anywhere and change them when I need.
I have attempted to create like this, but I can't seem to access the variables:

import 'package:flutter/material.dart';

class ColorSelect {

  Color cbuttons = const Color(0xFF1520A6);
  //there will be other colors here
}

This is how I tried to get the color:

 child: Text(
                  userManager.isLoggedIn ? 'Sair' : 'Entre ou cadastre-se >',
                  style: TextStyle(
                    color: ColorSelect.cbuttons,
                    fontWeight: FontWeight.bold
                  ),
                ),

but accessing the color class like this didn't work.

Answer 1

Extending the answer from the comments.

I think you're confused about the concept of classes in dart (or any OOP language for that matter).

To access a property of a class, you have to instantiate it.

color: ColorSelect().cbuttons,

or use static properties.

class ColorSelect {

 static Color cbuttons = const Color(0xFF1520A6);
}

I'll encourage you to research this.