Am I able to extend the Grav Admin theme?

I want to be able to update the grav logos of the admin theme, but I don't want the updates to override it.
Am I able to extend the Grav Admin theme?
If so, where in the configuration am I able to change the theme for the admin interface.

Thanks.

Hi, currently it's not possible unless you edit the Admin template directly. Customization, logo and in general white-labeling the Admin interface is a feature that will be provided by Admin Pro soon.

Thanks so much for the reply @flaviocopes