ESP32-HUB75-MatrixPanel-DMA/examples/PIO_TestPatterns/src/main.h

#include <FastLED.h>

#define BAUD_RATE       115200  // serial debug port baud rate

void buffclear(CRGB *buf);
uint16_t XY16( uint16_t x, uint16_t y);
void mxfill(CRGB *leds);
uint16_t colorWheel(uint8_t pos);
void drawText(int colorWheelOffset);