Vibrant multi-color gradient mesh backgrounds, aurora-like color transitions, mesh gradient blobs, iridescent surfaces. Evergreen trend 2022-2024 fueled by Apple, Stripe, Linear, Vercel aesthetics. Uses CSS radial-gradient layering, animated color shifts, noise texture overlay. Perfect for SaaS landing pages, startup sites, product launches, creative portfolios. NOT the same as single-direction linear gradients — this is MESH (multiple overlapping radial gradients). ALWAYS combine with 11-responsive-premium skill.