Proof

expo-screen-corner-radius

native-seam only — the upstream Expo module wrapper runs from the bundle; getCornerRadiusSync and getCornerRadius return the live simulated device's measured display corner radius from the same canonical surface metrics the engine uses to clip its screen. the value follows device switches and is zero for square-screen devices.
100%
API coverage
No visual proof cases have been published for this package yet. The registry summary below describes what the compat layer implements.
Working
getCornerRadiusSync and getCornerRadius with the real per-device radius in points
Missing—