Reference record
The Duolingo links below document private clean-room measurement. They do not imply affiliation, endorsement, human approval, or permission to republish source screens.
- System
- W30 · web
- Studied
- 2026-08-13
- Entry family
- night-world-stage
- Status
- reference-measured · human review required
Automated targets: structural changed pixels ≤ 2.0%, full changed pixels ≤ 8.0%, MAE ≤ 0.015, RMSE ≤ 0.035. These are measurement targets, not pixel-perfect certification.
Asset record: Original CSS insurance illustrations, fictional policies and quotes, licensed small-business photography, and transparent comparison data. Reference imagery is research-only. Public experiences ship original or licensed assets with source records.
- Duolingo web section 1
Night-world language hero
- dark blue star field with a large globe on the left
- compact centered promise and two stacked actions
- language rail anchors the bottom of the viewport
- Duolingo web section 2
Speaking-classes browser
- blue split hero with copy and character globe
- seven compact language cards in a white browser
- bright activity cards continue below the first rail