Every app shipped with the Bluetooth-rune icon. Draw a battery icon for
Battery Health and a signal/antenna icon for the two sub-GHz tools; the BLE
apps keep the Bluetooth icon, which is correct for them.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LEaD4ZeAfvWLBUxXp8G11r
Live fuel-gauge readings (voltage, current, temperature, remaining/full/design capacity, health, wear) with a rolling voltage graph. Read-only; the only app that also runs on stock firmware.