The `mat-slide-toggle` color will be paled when `[disabled]=true` as in the [example site](https://material.angular.io/components/slide-toggle/examples), but I want the color depth to be maintained even `[disabled]=true`.

How can I do this?

[![enter image description here](https://i.stack.imgur.com/uW1lD.png)](https://i.stack.imgur.com/uW1lD.png)