Bun — Design Score: 84/100 (grade B)
Strong foundations (typography, color) and motion polish, but spacing breaks the grid 58% of the time—rhythm feels loose.
This is a static, crawlable rendering for search & AI engines. The interactive version — filters, live decode console, copy & export — is at https://mozaika.design/score/bun.sh.
The four measured dimensions
- Typography & Hierarchy: 91/100
- Color & Contrast: 90/100
- Spacing & Layout: 62/100
- Motion & Polish: 88/100
What we measured
- Typography & Hierarchy — type ladder rhythm: 1.20× · 1.13× · 3.79× · 1.17× (26.2/35)
- Typography & Hierarchy — weight contrast: [400, 500, 600, 700, 800] (spread 400) (20.0/20)
- Typography & Hierarchy — body line-height: 1.43 (15.0/15)
- Typography & Hierarchy — heading line-height: 1.00 (10.0/10)
- Typography & Hierarchy — size discipline: 5 (20.0/20)
- Color & Contrast — body text contrast (WCAG): 18.23:1 (30.0/30)
- Color & Contrast — primary button contrast: 6.88:1 (10.0/10)
- Color & Contrast — accent discipline: 3 (20.0/20)
- Color & Contrast — surface coverage: 82% dominant (20.0/20)
- Color & Contrast — scheme consistency: dark (10.0/20)
- Spacing & Layout — spacing grid: 8px grid · 69% confidence (24.1/35)
- Spacing & Layout — grid adherence: 5/12 on 8px (10.4/25)
- Spacing & Layout — structure & responsive: 2 breakpoints (15.0/15)
- Motion & Polish — motion tokens: 150ms dominant (25.0/25)
- Motion & Polish — choreography: 9 reveal candidates (20.0/20)
Every line above is read from the live DOM — the exact contrast ratio, the detected spacing grid, the forced hover states — not an AI's guess from a screenshot.
Top fixes
- Audit and lock spacing to 8px grid
- Smooth the type ladder's 3.79× jump
- Expand interactive state coverage beyond focus
The comprehensive report — every fix with why + the exact how-to — is part of Mozaika Pro.
An automated measurement of Bun's publicly-visible design (color, type, spacing, motion) — not affiliated with bun.sh. Removal requests: hello@mozaika.design.