{# In auth.login.providers and signup.providers. ORCID's green comes from
   assets/css/orcid.css (.btn-orcid), so the button looks like ORCID's in
   any shell. It goes straight to ORCID: identities asks for an address
   afterwards, and only when the sign-in opens a new account. #}
<a href="{{ url_for('orcid.login', next=next_url) if next_url else url_for('orcid.login') }}"
class="btn btn-orcid d-flex align-items-center">
    ORCID
</a>