Hi Chloe! You can find the code on my read_only link, on the products template page (head & body): https://preview.webflow.com/preview/sosa-e-store-8f2711132ac0fbcff326101d37?utm_medium=preview_link&utm_source=designer&utm_content=sosa-e-store-8f2711132ac0fbcff326101d37&preview=2d327247937cc232bb2132aba8fe497a&pageId=60d09179e17fde2541eefa45&itemId=60d09179e17fde707deefa9d&workflow=preview
Sharing the whole code here will break its functionality so I suggest checking out how it is applied on the products template page with the added fields.
Also do checkout my other post on this issue: Linking CMS colors to product variant buttons (creating swatches)