When should you use a child theme for WordPress? It is important to create a child theme if you plan to make any custom changes to the code. This way, when the theme is updated, any custom changes to the code will not be overwritten.
Traditionally, when working with WordPress, this has required making a copy of the functions.php and style.css to create the child theme and enqueuing the child theme to the parent theme. With the different file structure in Full Site Editing, some adjustments needed to be made for all of the appropriate files to be found.
Fortunately, with the creation of the Create Block Theme plugin by WordPress.org, creating not only a child theme but a completely custom theme or style variation is easier than ever. Read the original article and find a step-by-step guide to getting it done!