You can use the Customization Options in the Dashboard to change the theme of all of the Universal Login pages. See here for more: Customize Universal Login Page Themes
Thanks for the links. I understand how it works when using out of box ULP widgets but I am using a customized HTML configured under:
Branding → Universal Login → Advanced Options → Login → HTML → Custom Login Form
On the page (screenshot above), I can customize the HTML for Login, Password Reset and MFA pages only. For the remaining pages can I use partials to customize them (theme and language only)?
About adding additional signup fields, which method will be compatible with the Customized html page - Partials or Auth0 Forms (progressive profiling is fine)?