WP Portfolio - Change load more button text

change-text.php

<?php
/**
 * Change Button Text
 *
 * @todo Change the `prefix_` with your own unique string.
 *
 * @param string $button_text.
 * @return string
 */
function prefix_change_load_more_text( $button_text = '' ) {
	return 'My Button Text';
}

add_filter( 'astra_portfolio_load_more_text', 'prefix_change_load_more_text' );