authoritytactical

Great! I’ll pass it along…

Damn scratch that. retina.js method doesn’t work at all after clearing my caches (had forgot to clear assets on my CDN)…

This is the code that I’m using in my functions.php file to add the name fields BTW:

<?php
/**  ----------------------------------------------------------
 * Add new register fields for WooCommerce registration.
 *
 * @return string Register fields HTML.
 *
 * Instructions from here:
 * https://support.woothemes.com/hc/en-us/articles/203182373-How-to-add-custom-fields-in-user-registration-on-the-My-Account-page
 * ----------------------------------------------------------------- */

function wooc_extra_register_fields() {
/* I'm using FNAME as the field name for firstname so that MailChimp receives it  */
	?>
<p class="form-row form-row-first">
	<label for="reg_billing_first_name"><?php _e( 'First name', 'woocommerce' ); ?> <span class="required">*</span></label>
	<input type="text" class="input-text" name="mc4wp-FNAME" id="reg_billing_first_name" value="<?php if ( ! empty( $_POST['mc4wp-FNAME'] ) ) esc_attr_e( $_POST['mc4wp-FNAME'] ); ?>" />
	</p>

	<p class="form-row form-row-last">
	<label for="reg_billing_last_name"><?php _e( 'Last name', 'woocommerce' ); ?> <span class="required">*</span></label>
	<input type="text" class="input-text" name="mc4wp-LNAME" id="reg_billing_last_name" value="<?php if ( ! empty( $_POST['billing_last_name'] ) ) esc_attr_e( $_POST['billing_last_name'] ); ?>" />
	</p>

	<div class="clear"></div>

	<?php
}

add_action( 'woocommerce_register_form_start', 'wooc_extra_register_fields' );

/**
 * Validate the extra register fields.
 *
 * @param  string $username          Current username.
 * @param  string $email             Current email.
 * @param  object $validation_errors WP_Error object.
 *
 * @return void
 */

function wooc_validate_extra_register_fields( $username, $email, $validation_errors ) {
	if ( isset( $_POST['mc4wp-FNAME'] ) && empty( $_POST['mc4wp-FNAME'] ) ) {
		$validation_errors->add( 'billing_first_name_error', __( '
		<strong>Error</strong>: First name is required!', 'woocommerce' ) );
	}

	if ( isset( $_POST['billing_last_name'] ) && empty( $_POST['billing_last_name'] ) ) {
		$validation_errors->add( 'billing_last_name_error', __( '<strong>Error</strong>: Last name is required!.', 'woocommerce' ) );
	}

}

add_action( 'woocommerce_register_post', 'wooc_validate_extra_register_fields', 10, 3 );

/**
 * Save the extra register fields.
 *
 * @param  int  $customer_id Current customer ID.
 *
 * @return void
 */
function wooc_save_extra_register_fields( $customer_id ) {
	if ( isset( $_POST['mc4wp-FNAME'] ) ) {
		// WordPress default first name field.
		update_user_meta( $customer_id, 'first_name', sanitize_text_field( $_POST['mc4wp-FNAME'] ) );

		// WooCommerce billing first name.
		update_user_meta( $customer_id, 'billing_first_name', sanitize_text_field( $_POST['mc4wp-FNAME'] ) );

			// Set default display name.
		update_user_meta( $customer_id, 'nickname', sanitize_text_field( $_POST['mc4wp-FNAME'] ) );
	}

	if ( isset( $_POST['billing_last_name'] ) ) {
		// WordPress default last name field.
		update_user_meta( $customer_id, 'last_name', sanitize_text_field( $_POST['billing_last_name'] ) );

		// WooCommerce billing last name.
		update_user_meta( $customer_id, 'billing_last_name', sanitize_text_field( $_POST['billing_last_name'] ) );
	}
}

add_action( 'woocommerce_created_customer', 'wooc_save_extra_register_fields' );

/*  ---- this code sets the first name as the display name ---- */
add_filter('pre_user_display_name','default_display_name');

function default_display_name($name) {

		  if ( isset( $_POST['mc4wp-FNAME'] ) ) {
		   $name = sanitize_text_field( $_POST['mc4wp-FNAME'] );
}
 return $name;
}
?>