there. So I have iThemes Security forcing SSL on my login

Hi there. So I have iThemes Security forcing SSL on my login page: collingibson.ca/in

The login image url is trying to load over http:// which is not good. I am using Ultimate Branding to specify the login image but can't get it to save the https:// at the start of the image location url.

Any thoughts? As always thank you for you help
Also, I don't actually know if this is an Ultimate Branding issue. Just my first guess.