Design tools generate pixels, not taste. We built a reference library of 93,000+ curated visuals and 48 theory documents so your next interface doesn't look like everything else.
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Spotify
Halide
Darkroom
Spotify — Music
Bear — Productivity
Nike Run Club — Fitness
Darkroom — Photo
Halide — Photo
Shazam — Music
Headspace
Bear
93,000+ visual references from 39,888 apps across 24 genres, paired with 48 theory documents on the principles behind considered design. Bilingual English + Chinese.
37,600+ app icons organized by genre. Grid systems, color analysis, and the discipline of fitting identity into a rounded square. From minimal glyphs to rich illustrations.
Spotify
Headspace
Bear
Darkroom
Halide
Things 3
Fantastical
GitHub
App Store hero graphics, screenshot compositions, device mockups. The visual psychology that converts a browse into a download. Categorized by style: text-hero, device-centered, lifestyle, and more.
Nike Run Club — Fitness
Spotify — Music
Headspace — Wellness
93,000+ references. 48 theory documents. One purchase.
See pricing →Real in-app screens from Mobbin, ScreensDesign, and the App Store. Navigation patterns, onboarding flows, settings screens. The truth behind the marketing screenshots.
Notion Calendar — Productivity
Obsidian — Productivity
Timepage — Productivity
22% of icon width. Not a simple border-radius — a superellipse that Apple calls “squircle.”#D4463C with white glyph. High contrast, category-agnostic. Reads at 16px on the home screen.Not tutorials. Not blog posts. Structured reference documents covering the principles that separate considered design from generated output. Bilingual English + Chinese.
How proximity, similarity, closure, and continuity shape the way users perceive grouped elements, card layouts, and navigation hierarchies. With annotated examples from Spotify, Bear, and Apple Maps.
The reference shelf that AI doesn't have—yet.
Visual taste can't be prompted into existence. It has to be studied, absorbed, and organized. That's why we built Design KB—93,000 curated examples of what good looks like, so you (or your tools) can finally see the difference between generated and considered.
Browse the collection