How to change column card background

Shopify Discussion
8

It’s because you are on the home page and i want to change it on this page instead - https://flowpure.co.uk/products/faucet-tap-water-purifier-physical-filtering-for-home-kictchen-2-filter-element-removable-washable-filter-water-purifier-aerator?token=EC-1MF14601HS087845M#qv67ioSFNDrmj