Customizable template or site/page preview for password protected site

Use case or problem

A simple minimalist customizable website and pages protected by password.

Proposed solution

Either enable the customizable publish.css or provide a site or page preview option, so that we do not have to publish the whole site without any protection temporarily.

Current workaround (optional)

None.

Related feature requests (optional)

I don’t understand what you are asking

There is no way to customize the publishing website template once the website is password protected. Please let me know if I missed any other methods. Thanks for your attention!

ok, so this is just a duplicate of the bug report you already linked.

Not necessarily. I am not asking a solution that has to enable publish.css. The feature to do any customization for password-protected site or even preview what it may look like if password is removed temorarily other than a plain template is not available. Please correct me if I am wrong. Thanks a lot for your consideration!