The Branded sign-in pages sample template contains two pages you can customize with your organization's branding. Ensure you have changed the default sign-in pages on the Settings page. See our knowledge base article, Replace default pages.
This template adds the Sign in page, a branded home page to sign in, which appears like this:
See our knowledge base article, Add a new page.
The template also adds the Sign in modal page, a sign-in page for when a user attempts to access a page that requires the user to sign in, for example: