Setup PayPal is optional messaging for Event Espresso 3

gistfile1.txt

/* Style PayPal optional messaging */
#external-link-msg-pg { 
	padding: 1em;
	margin:0 0 2em;
	background-color: #FFFFE0;
	border:1px solid #E6DB55;
	border-radius: 2px; }

gistfile2.php

<?php
//* Do NOT include the opening php tag
 
//* Replace existing PayPal optional messaging with a new one
function ee_payment_options_paypal_optional( $translated, $original, $domain ) {
$strings = array(
 'denotes an external link. clicking will take you to another website for payment processing.' => 'Upon clicking on the PayPal button, you will be transferred to PayPal.com where your payment will be securely processed. A <strong>PayPal account is not required</strong> and you can pay with a credit or debit card.'
 );
if ( isset( $strings[$original] ) ) {
 $translations = &get_translations_for_domain( $domain );
 $translated = $translations->translate( $strings[$original] );
 }
return $translated;
}
add_filter( 'gettext', 'ee_payment_options_paypal_optional', 10, 3 );

References:

https://eventespresso.com/topic/various-questions/