text: /*
   * Author: Sam McCreery 2019
   * License: Creative Commons Attribution
   *          CC BY, https://creativecommons.org/licenses/by/4.0/
   */
  #ifndef COLOR_H_
  #define COLOR_H_
  
  #include <stdint.h>
  
  uint16_t mul_color(uint16_t color, uint16_t mask);
  uint16_t brightness_4(uint16_t color, uint8_t brightness);
  
  #endif
  