ODK Central Interface Customization

Please is it possible to add a logo to the current ODK Central interface or probably change the colors of the interface?
For example: If I want to change the text

ODK Central

to another text or a logo, how do I achieve that?
Also, how do I change the colors of the interface if I want to change them.
Thanks.

Find attached a screenshot of what I am talking about.
odk central interface