closeSpring constant

SpringDescription const closeSpring

Spring profile for the iOS 26 liquid morph closing animation.

Identical constants to openSpring. The closing "bump" is produced by injecting closeVelocityHint at the moment of close — not by different spring physics.

Implementation

static const SpringDescription closeSpring = SpringDescription(
  mass: 1.0,
  stiffness: 120.0,
  damping: 16.0,
);