A main-image tactic for clear, glass, or plastic products that otherwise look washed-out or indistinct in search results: digitally add color or vibrancy to the product so it stands out against competitors' equally plain thumbnails.
Only applies where added color makes visual sense for the product (e.g., tinting a clear container, adding vibrant liquid) — it's a narrow fix for transparency/plainness, not a general-purpose main-image tactic.
Apply: For transparent, glass, or plain plastic products, apply digital color/vibrancy in the main image specifically to improve stand-out in search results.