Portfolio · by invitation

Euna Kwon

Product & visual designer — design systems, interaction, and a bit of paint.

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Meta · Facebook Design System

Blueprint Design Language

Founding Designer, Meta 2022 — Present iOS · Android · Web

Building Facebook's foundational design system from the ground up. I led three of its foundational pillars — Spacing, Shape, and Material — across iOS, Android, and Web, and helped grow the system from 12 to 15 foundational areas in version 2.0.

01 — The system

A foundational design language, 0 → 1

Blueprint is Facebook's foundational design system. As a founding designer I helped define its structure and scale it across platforms — a cross-org effort spanning 20+ product designers — turning systems work into measurable product impact and the first positive metric movement from a design system in the company's history.

Cross-org Blueprint design sprint across 20+ designers
Blueprint components and foundational areas
02 — Material

Material Treatment System

Lead Product Designer, Meta · 2024

Brought Apple's depth APIs into Facebook's design language to create a system of blur-based visual layers — balancing immersion against the constraint that content legibility could never be compromised. Adopted across Reels, the photo viewer, and Messenger with statistically significant positive movement on top-line metrics.

Depth of material blur — Surface, Standard, Temporary
Material treatment before and after on immersive media
03 — Shape

Shape System

Lead Product Designer, Meta · 2023

Dynamic corner-radius logic tied to hierarchy and surface type, plus a perception framework for visual consistency. Adopted across Facebook with 700+ engineering tasks resolved, and evolved into a more innovative shape strategy for Blueprint 2.0 in 2025.

Shape language — circle to rounded to edge-agnostic, mapped by role
Shape outcome — before and after on a profile surface
04 — Spacing

Feed Spacing Reduction

Lead Product Designer, Meta · 2024

A deceptively simple change validated through live experimentation — tightening feed spacing from 8dp to 4dp. The result: statistically significant positive movement on sessions and video views across iOS and Android.

Feed spacing reduction — 8dp before versus 4dp after
05 — Product pattern

Collapsible Unit

Lead Product Designer, Meta · 2025

An end-to-end product pattern: discovery → constraint → pivot → adoption. When the original launch surface couldn't host it, I repositioned the experiment in Marketplace and PDP, validated it safe-to-scale, and saw it absorbed into our shared component library on Android and iOS.

Collapsible unit solution on profile and About pages
Marketplace categories experiment — control, V1, V2
Adoption — before and after on the edit-profile surface
06 — Interaction

H-scroll Gesture Strategy

Lead Product Designer, Meta · 2025

A gesture-first browse system for Facebook's horizontal-scroll modules. Replacing tap-to-refresh and tap-to-expand with two complementary pull gestures — Pull to Local Refresh and Pull to See All — turning the act of scrolling into the only interaction users need to refresh, explore, and discover.

Pull to local refresh — pull right from the left dead space
Pull to see all — pull left from the right dead space
07 — Platform quality

Android Design Quality Program

Lead Product Designer, Meta · 2025

A cross-org program treating Android as a first-class design platform — addressing how iOS designs degrade under Android constraints, and where small visual inconsistencies amplify into global quality issues at scale (~75% of Facebook's global users are on Android). Three focus areas: Declutter & Simplification, Cross-Platform / Industry Standards, and Android-Specific Constraints.

Android dominates Facebook — majority of daily active users
Design approach — three focus areas for Android quality