Adafruit_GFX-compatible library for NeoPixel grids
Why do you think that https://github.com/adafruit/Adafruit_NeoPixel is a good alternative to Adafruit_NeoMatrix
Adafruit_GFX-compatible library for NeoPixel grids
Why do you think that https://github.com/adafruit/Adafruit_NeoPixel is a good alternative to Adafruit_NeoMatrix