yourdesigncoza

/**
 * Add the field to the checkout
 **/
add_action('woocommerce_after_order_notes', 'my_custom_checkout_field');

function my_custom_checkout_field( $checkout ) {
	
	echo '<div id="my_custom_checkout_field"><h3>'.__('My Field').'</h3>';
				
	/**

yourdesigncoza

add_filter( 'woocommerce_billing_fields', 'custom_woocommerce_billing_fields' );

function custom_woocommerce_billing_fields( $fields ) {

   // Over-ride a single label
   $fields['billing_first_name']['label'] = 'Your label';
   
   // Over-ride a single required value
   $fields['billing_first_name']['required'] = false;

yourdesigncoza

<?php
/**
 * Hook in on activation
 */
global $pagenow;
if ( is_admin() && isset( $_GET['activated'] ) && $pagenow == 'themes.php' ) add_action( 'init', 'yourtheme_woocommerce_image_dimensions', 1 );

/**
 * Define image sizes
 */