I hope you are well today and thanks for posting here.
Please make sure that you have enabled user registration on your site as described in the following pages.
Thank you. With this plugin I could just create a form for the wordpress login. That isn’t what I meant. I want to adapt the form which pops up if click on the icon of the theme pls. see the screenshot. How can I achieve that?
OK then you can achieve this using any of the following solutions.