12-25 min | solo
ControlsPaint with pointer or touch, choose signals with 1-4, change brush size with brackets, pause with Space, rewind with R, and hold F to forecast.
AccessSupports keyboard, pointer, touch, and gamepad, with pause, short rewind, forecast, reduced motion, high contrast, visual sound, and local campaign slots.
Test scopeAutomated suite, clean production build, and desktop Chromium play path checked. Broad device, assistive-technology, worker performance, and replay gates remain owner-managed.