Custom Login Page with Standard Block Parameters

How can we change the parameters of this textbox, the button label, etc.?

I think it would be nice to have something like this (I created my example in Gradio). The HTML feature in auth_message is great, but it might not be sufficient. Additionally, the inability to change label text is a problem for some non-English users. Implementing these changes allows us to make the login page UI much cleaner and more customizable. It would also be nice to add custom buttons for sign-up, contacting, etc.