pub const COAST_STOP_THRESHOLD: f32 = 15.0;Expand description
Velocity magnitude (px/s) below which coasting is considered “stopped.”
Raised from an earlier 0.5 — at 0.92 friction the tail from 0.5 down to
truly zero motion is imperceptible but still real seconds of elapsed
time; 15px/s is still much slower than any perceptible motion but cuts
the long, invisible tail short. Combined with MAX_VELOCITY and a
slightly higher friction (ScrollStyle::default_for_platform), brings
total coast time for the full realistic velocity range down to
~0.35s-0.7s (confirmed by direct calculation), instead of 1.2s-1.9s+.