If you would like to customize Favro even more you can do so by clicking Administration in your avatar menu.
In the left menu click Settings. Here you have the option to give your Members the permission to invite guest users, make collections public and to add integrations. You can also customize your Backlog name and set a Starting Collection for new members.
In the screenshot below I have changed the name of Backlog to List. And then when pressing the + icon I can choose between adding either a Board or a List (instead of Backlog).