A blank plugin file for customizations to your Paid Memberships Pro setup including a stylesheet for customizations.

pmpro-customizations.php

<?php
/*
Plugin Name: PMPro Customizations
Plugin URI: https://www.paidmembershipspro.com/wp/pmpro-customizations/
Description: Customizations for my Paid Memberships Pro Setup
Version: .1
Author: Paid Memberships Pro
Author URI: https://www.paidmembershipspro.com
*/

/**
 * Enqueue additional stylesheet.
 *
 * @return void
 */
function pmproc_preheader() {
    if ( ! is_admin() ) {
        wp_enqueue_style( 'pmproc_stylesheet', plugins_url( 'css/pmpro-customizations.css', __FILE__ ),
        array(), '1.0', 'all' );
    }
}
add_action( 'wp_enqueue_scripts', 'pmproc_preheader', 1 );

//Now start placing your customization code below this line