Hi Fanny,
Thanks for reaching out to us. Please check this documentation: https://getwooplugins.com/documentation/woocommerce-variation-swatches/#how-to-enable-color-swatches
I hope it will help you to achieve the color swatches on the product page.
Thank You
Activation bubbles colors product variations
Fanny GARNIER
Hello, I downloaded the extension but can’t integrate it on my product pages… How do I do this? Thanks in advance