gd-77_screen_grabber.py is the universal OpenGD77 screen grabber (despite the
name): it talks over the USB CDC serial port, auto-detects the radio model and
reads the MD-UV380's 160x128 RGB565 framebuffer, saving a PNG. Handy for
capturing UI changes. gd-77_firmware_loader.py is the GD-77 (MK22) SGL loader,
included for completeness (the MD-UV380 uses opengd77_stm32_firmware_loader.py).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
