Modifying 'Add to cart' button text

I can create a custom hook belgrade_button_classes that we could use to override the button classes like this:

/**
 * Implements hook_belgrade_button_classes_alter().
 */
function YOUR_MODULE_NAME_belgrade_button_classes_alter(&$button_classes, $string, $variables) {
  if ($string === t('Add to cart')->render()) {
    $button_classes = [
      'btn',
      'btn-primary',
      'bi-btn-basket'
    ];
  }
}

Code is merged. All seems to work well.

Automatically closed - issue fixed for 2 weeks with no activity.