The chained attempt (1530bbc) fed each run's result into the next frame's
seed, so a wrong read on one frame carried into the ones after it. Runs are
independent again: every frame is seeded from the drawn shape, frames 2-5
with it grown x1.5 about its centre for motion tolerance. REQ-189, ui-spec
and tasks.md updated to the independent contract.
asus
9c95a4a759
