Hello,

The header is configured in each row: https://xtemos.com/docs/woodmart/header-builder/header-rows-columns-configuration/

The footer background is set in the Theme settings > Footer.

The product page background is set in the settings: https://xtemos.com/docs/woodmart/product-page-options/#local_settings

You are welcome! If you have any questions please feel free to contact us.

Best Regards