Shapes with DoTween

I am using DoTween and I wanted to use Shapes with it. For example, I am using Torus from Shapes and I want to fade out the color of it. But looks like DoTween cannot find a material to fade the color?

http://dotween.demigiant.com/documentation.php

A small example of what I am trying to achieve:

using Shapes;

public class Example: MonoBehaviour { 

public Torus torus;

public void Start(){

    torus.DOColor(new Color32(255, 255, 255, 0), 2.0f); // Throws error

}