By default, woocommerce uses Select type for variation select and text values in specifications. Woocomerce addon adds several additional options for attribute types: color tag, text tag, image and image + text tag
This feature supports variable selector, specification table and dynamic comparison
How to add product swatches to Woocommerce FSE templates?
When you create attribute in Woocommerce, you can select it’s type
Once you select custom type and save it, you can find additional fields when you configure your attribute terms