Quality checks warn. They never fail a submission by themselves.
| Check | Warning when |
|---|---|
| 192px icon | No 192-class icon (or SVG) |
| 512px icon | No 512-class icon (or SVG) |
| Maskable icon | No icon with purpose maskable |
| Narrow screenshots | No form_factor: "narrow" and no unspecified fallback |
| Wide screenshots | No form_factor: "wide" and no unspecified fallback |
| Description | Manifest has no description |
| Theme color | Manifest has no theme_color |
| Service worker | No navigator.serviceWorker.register found in HTML or same-origin scripts |
Optional checks (shortcuts, share target, file handlers, protocol handlers) are reported as present or not applicable. Their absence is not a warning.
Maskable icons: see web.dev — Maskable icons. Screenshots: see the manifest screenshots member.