How to change background image of header in a custom theme

Hi, I am trying to change the background image of the .home header element. Which file do I add/modify? Can anyone provide the sample SASS code for this? Thanks.

The home page banner image is controlled by the $homepage-bg-image sass variable (which is set to none by default).

For a relatively simple theme with a custom banner image you can take a look at this repository.

Thank you for the information. It worked.