A vibrant, rainbow-colored lettuce plant grows in a garden bed with a wooden sign reading 'Smart Lettuce' and gardening tools nearby.

A genetically engineered lettuce plant with large, crisp leaves that visibly change color based on soil pH. Some leaves are a vibrant blue, others are bright pink, creating a striking gradient across the plant. The lettuce is growing in rich, dark soil in a well-lit garden bed, with a small wooden sign labeled “Smart Lettuce” nearby. Sunlight filters through the leaves, highlighting the color contrast. The background includes gardening tools and a few other green plants for context. See more