We've noticed the new login screen in 10.1. Sober but elegant and responsive, nice :)
Can the image be customized?
AFAIK it is not possible from the Admin section. Based on discussions on previous versions, I suspect we could customize your_instance_name/modules/Users/Login.php, but it woul dbe great if there was a no-code alternative!
This is a great place for our customers to display their brand identity and encourage adoption.