First of all I want to thank the team for listening to my previous ideas and giving their opinions about them.

Second, I would like to know what the reasoning behind two seperate looginscreens for username and password is. We're using a password-manager (Lastpass) and the seperate loginscreens just aren't convenient for us. I've read up on this on the internet and found a lot of people that share this exact same thought.

I wonder if it would be possible to change the loginscreen to a single page, or a way to create a plugin for it so that I can create my own login screen myself without hacking the core.

A single-page loginscreen is a very convenient way in this day and age with all sorts of password managers.