text: #ifndef _COMMON_H
  #define _COMMON_H
  
  #include <Arduino.h>
  #include "Ytani_NeoPixel.h"
  
  typedef struct  {
    uint32_t hue;
    uint8_t  sat;
  } hs_t;
  
  extern const int HS_N;
  extern const hs_t HS[];
  extern void setHS(Ytani_NeoPixel *leds, int led_i, int hs_i, uint8_t br);
  
  #endif // _COMMON_H
  