Templates

Returnline's customer pages and emails are WooCommerce templates, so you can override them like WooCommerce's own.

Overriding a template

Copy the file from the plugin's templates/ folder into a returnline/ folder in your (child) theme, keeping the path below templates/, and edit the copy:

Template	Copy to
templates/myaccount/returns.php: My account → Returns	yourtheme/returnline/myaccount/returns.php
templates/myaccount/return-request.php: the request form	yourtheme/returnline/myaccount/return-request.php
templates/myaccount/return-view.php: a return's page	yourtheme/returnline/myaccount/return-view.php
templates/myaccount/order-returns.php: the Returns section on an order	yourtheme/returnline/myaccount/order-returns.php
templates/emails/returnline-return.php: the emails (HTML)	yourtheme/returnline/emails/returnline-return.php
templates/emails/plain/returnline-return.php: plain text	yourtheme/returnline/emails/plain/returnline-return.php

Each template lists the variables it gets at the top. Keep the form field names and the hooks (do_action( 'returnline_…' )) in your copy, or add-ons such as Returnline Pro can't add their parts.

Styling without overriding

Most changes only need CSS. The pages use WooCommerce's classes (woocommerce-orders-table, order_details, woocommerce-OrderUpdates), so your theme already styles them. Returnline's own classes:

Class	Element
.returnline-request	The request form; data-resolution holds the chosen resolution
.returnline-item, .is-selected	An item card on the form, and a ticked one
.returnline-choice	A resolution choice, when there is more than one
.returnline-progress, li.is-done, li.is-current	The progress bar
.returnline-instructions	The "How to send it back" box
.returnline-timeline	Return updates

For example, a progress bar in your brand colour:

.returnline-progress li.is-done::before,
.returnline-progress li.is-done::after { background: #0a7d55; border-color: #0a7d55; }

The emails' styles come from WooCommerce's email stylesheet, in your email base colour; filter woocommerce_email_styles to change them.