MX Master 3 battery readings marked as approximate
The MX Master 3's firmware only exposes the legacy BATTERY_STATUS (0x1000) feature over Bluetooth, which reports four discrete levels (100/50/20/5) rather than a true state of charge — so it legitimately shows 100% for days after a full charge, then jumps to 50%. The dropdown now labels these readings "approx., mouse reports 4 levels".
MX Master 3S / 4 (UNIFIED_BATTERY, true 1% state of charge) are unchanged. README updated with the per-model precision difference and a troubleshooting entry.
Install: verify with shasum -a 256 -c checksums.txt, unzip, move to /Applications. See README for Gatekeeper/Input Monitoring steps.
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