Static versus dynamic sections

In Chapter 1, Getting Started with Shopify, while discussing the theme structure, we briefly mentioned section files, but what exactly are sections?

Besides being the name of one of the directories in the theme file, a section is a type of file that allows us to create reusable modules that we can customize using the theme editor, as we learned previously. However, as opposed to the global settings that we have learned about, the major difference is that the JSON settings for sections are defined inside each section file and are section-specific.

Section-specific settings allow us to reuse the same section module multiple times on the page and select a different set of options for each occurrence, making it a pretty powerful feature. For example, we can create a featured collections section and repeat it three times to display three products from three separate collections.

Before we proceed, let's navigate to the theme editor by clicking...