Change title of certain paragraphs in a form
If you want to change the title of certain paragraphs in the form:

/**
 * Implements hook_field_widget_WIDGET_TYPE_form_alter().
 */
function mymodule_field_widget_entity_reference_paragraphs_form_alter(&amp;$element, &amp;$form_state, $context) {
  if ($element['#paragraph_type'] == 'foo') {
    // insert more conditions
    $element['top']['paragraph_type_title']['info']['#markup'] = t('New title for paragraph type Foo');
  }
}