The most advanced WooCommerce Swatch extension for product attributes ( supports custom attributes too ) that adds three types ( Color, Image, and Label or Text ) of product attribute display types with WooCommerce default product attribute display type. And it converts product attribute dropdown in single product template into swatch or swatches.

Demo: https://codecanyon.net/item/stwooswatches-advanced-variable-product-attributes-swatches-for-woocommerce/21905266