We’re running the self-hosted version but we use Invoice Ninja mainly for client quotes and time tracking/production billing. Once a project is complete we actually bill with Quickbooks. So I’ve customized quite a few labels, some through the settings back-end, but most by editing a couple of core files directly. Is there a way to maintain those customizations (like with child-themes in CMS systems) without having to re-edit updated core files after an upgrade?
Thanks
Chris Blair