Is it possible to override "#unity-text-input" styling on UI Toolkit text input fields?

I would like to change the background color and shape of the input field but it seems to be locked behind “#unity-text-input”.

How do I overcome this?

You can do it using USS. Like this (for all Unity Buttons):

Button.unity-button {
    margin: 2px;
    border-width: 0;
}

or this (for specific Unity Toggle):

#my-toggle .unity-toggle__checkmark {
    width: 20px;
    height: 20px;
    border-width: 0;
    background-color: initial;
}

Thank yoU!