The PicoCalc reads its charging flag straight off the handheld's own BMS
— the kernel's power_supply status, backed by the keyboard MCU's battery
register — so the state was known all along; the header simply never drew
it. Charging replaces the fill with a sweep frame, and a platform without
effects holds frame 0, so a charging pack drew an *empty* cell: the gauge
under-read the pack outright, exactly while it was filling.
Animation is now the caller's claim rather than something inferred from a
held frame. Where nothing animates the gauge draws its resting state — the
true fill, no blink — and says charging with an arrow beside it instead.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Jean-Pierre MartineauandClaude Opus 5
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