How do I create templates for all the member pages?

I have a question about the member templates. In this article about member plans I see that users can change the URL of several pages, like sign-in, sign-up, account-profile, account-plans, etc.

I would like to create theme templates for all these pages. Are there special .hbs template files in which I can incorporate all the objects, for example the @member attributes..

Can anyone explain what the best way is to create templates for all these member-related pages in Ghost?

Many thanks in advance!