text: #ifndef _MATRIX_DISPLAY_H
  #define _MATRIX_DISPLAY_H
  
  #include "LEDMatrix.h"
  #include "ledmatrixfonts.h"
  
  extern uint8_t MatrixDisplayIsOn;
  
  extern LEDMatrix matrix;
  
  void init_matrix_display(bool reverse = false);
  void refreshTheMatrixDisplay(bool nextPage = false);
  void DrawNumber(String strNum, uint8_t iDotPos = 0);
  uint8_t GetCharFromFont(char cChar);
  uint8_t GetCharWidth(char cChar);
  void ScrollLeft(uint8_t *buf, const uint16_t cols, const uint16_t rows);
  
  #endif