From where you will set the invoice printer type?

RestroFood provides background, text, button, anchor link, etc color change option so that you could match the plugin environment color with your website. Follow the screenshot to get the option:

Go to Appearance -> Themes -> Add New -> Upload Theme -> Browse and Install Now You will need to install some required plugins to work the theme properly. Follow the below screenshot.

You will find the print button in the order details popup:

Restrofood provide invoice logo, shop name, address and footer text add option.