The Newspack theme allows you to customize the footer area of your site by adding widgets to the Footer and Above Copyright areas. You can also change the copyright information at the bottom of the page by following the below steps.

By default, your site will display your Site Title next to the © symbol and current year in the footer. The Site Title can be edited by navigating to Customize > Site Branding — if I set my Site Title to ‘Newspack’, by default, the copyright information would look like this:

To change the text that’s used for the copyright information, follow these steps:

  1. Navigate to Customize > Footer Settings.
  1. In the field labeled Copyright Information, enter the text you would like to replace the Site Title next to the © symbol.
  2. Click Publish.

Now when you view the footer area of your site, you will see your new Copyright Information:

Removing your custom text from that field in the Customizer will get the copyright to display the Site Title again.

You can find steps to change the footer background color in the Custom Colors section of the documentation.