zero-one/site/config/folder there are three files:
config.www.thezero.club.php. This one you should rename to your domain name.
config.yourdomain.com.phpshould have only those options that are different on localhost and on live server. In Zero One default setup only difference is a debug option, which is at localhost set to true, and on live server set to false.
assets/css/panel.cssand you can customize it further.