FTP into VM and edit core CSS

Has anyone figured out how to edit core files via ftp in the VM boxes. I tried proftpd but frappe user is not root so that didn’t go anywhere

@zealmurapa why do you need root access to edit files. All related files are in the /home/frappe/frappe-bench folder

I have modified the core css files and images, would like to upload it to the bench folder, thats why