Etsy

Etsy employs a 'rainbow' strategy, using a different high-saturation solid background for every slide to create a sense of variety and abundance. The design system is remarkably consistent: large, centered sans-serif captions at the top, followed by a white device frame. They lean heavily into 'Gift Mode,' showing niche personas like 'The Cheese Lover' to prove the app's catalog depth. A designer can steal their approach to feature-shaping-instead of just showing a feed, they show the 'outcome' of using the app (e.g., the tracking notification). The copywriting is functional but warm, matching the brand's handmade aesthetic while maintaining the efficiency expected of a top-tier e-commerce platform.