| Dataset | Primary source | Verified |
|---|---|---|
| Apple device screens | Apple Developer / Human Interface Guidelines device specifications | 2026-08-07 |
| Android device screens | Samsung, Google, OnePlus, Xiaomi, Motorola and Sony published specifications | 2026-08-07 |
| Windows devices | Microsoft Surface technical specifications | 2026-08-07 |
| Handhelds & e-readers | Valve, Nintendo, ASUS, Amazon, Kobo and reMarkable specifications | 2026-08-07 |
| Safe area insets | Apple Human Interface Guidelines; observed WebKit env() output | 2026-08-07 |
| Framework breakpoints | Each framework's own current documentation — version noted per page | 2026-08-07 |
| Display resolution names | VESA and CTA standard designations | 2026-08-07 |
| Paper sizes | ISO 216 (A and B series); ANSI standard sizes | 2026-08-07 |
| CSS unit conversions | W3C CSS Values and Units Module | 2026-08-07 |
| Social image sizes | Each platform's published help documentation | 2026-08-07 |
| App & icon assets | Apple HIG, Android developer docs, W3C Web App Manifest, Open Graph protocol | 2026-08-07 |
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