What format is primarily used for configuration files in Shopify themes?

The primary format used for configuration files in Shopify themes is YAML. YAML, which stands for "YAML Ain't Markup Language," is a human-readable data serialization format that is commonly used for configuration files. It allows for easy readability and the representation of complex data structures in a way that is straightforward for developers to understand.

In the context of Shopify themes, YAML files are utilized particularly for settings and configurations, allowing themes to be customized with values that can be easily read and modified. This format supports hierarchical data structures, making it ideal for representing various theme settings and properties clearly and concisely.

JSON, while a widely-used format for data interchange, is typically not the primary choice for configuration files in Shopify themes. XML is another data serialization format, but it tends to be more verbose and less human-readable than YAML. CSV, being primarily used for tabular data, does not fit the structural needs of theme configurations.

By understanding the specific use of YAML in Shopify theme development, one can better manipulate and configure themes effectively.