Optional template files

- [Instructor] WordPress uses what's known as … the template hierarchy … to figure out which template file to use … when displaying a specific type of content. … This graphic comes from … the WordPress template hierarchy page … in the WordPress developer handbook, … and it shows you the entire flowchart … of the process of selecting which template file to use. … I'm showing you this because, at the very end, … on the right hand side here, … you can see index.php. … This is the fallback file for all template files, … so if no other template files exist, … WordPress automatically falls back to index.php … as the main template file. … That's what WPRIG does out of the box. … It provides index.php … as the only template file in use. … However, as you've seen previously in the course, … WPRIG also ships with optional template files … directly from the template hierarchy, … you can drag and drop into your theme … and they automatically take effect. … Those template files sit under the folder called "optional". …