How to Apply Custom Styling to Stripe Checkout Fields in WordPress

/**
 * Author: WP Turned UP
 * Author URI: https://wpturnedup.com
 */
 
function my_theme_modify_stripe_fields_styles( $styles ) {
    return array(
        'base' => array(
            'iconColor'     => '#666EE8',
            'color'         => '#31325F',
            'fontSize'      => '15px',
            '::placeholder' => array(
                'color' => '#CFD7E0',
            ),
        ),
    );
}

add_filter( 'wc_stripe_elements_styling', 'my_theme_modify_stripe_fields_styles' );