Use the administration settings first for logos, design selection, pages, posts, menus, ad placements, and trusted integration snippets.
Do not edit an included theme directly because an update can replace it. Template, CSS, or JavaScript changes should be developed in a v7 custom frontend theme whose lowercase directory name ends with -custom. Build and test it outside production, then preserve both its source directory under private/resources/themes/front/ and its compiled directory under themes/front/ in every backup and deployment.
Legacy AdLinkFly 6.6.5 CakePHP themes are not compatible with the v7 theme system. Recreate required changes as a new v7 custom theme and follow the full custom-theme procedure in the buyer documentation.