Merge pull request #6 from junjihashimoto/fix/logger

Update LOG's color with reset

utils/logging.h

@@ -22,15 +22,19 @@ inline void LOG(Logger& logger, int level, const char *message, ...) {
  static const char *red = "\033[0;31m";
  static const char *white = "\033[0;37m";
  static const char *gray = "\033[0;90m";
+ static const char *reset = "\033[0m";
  static const char *logColors[] = {red, red, orange, gray};
  if (level <= logger.level) {
  va_list(args);
  va_start(args, message);
  snprintf(logger.buffer, sizeof(logger.buffer), message, args);
- fprintf(logger.stream, "[%s%s%s] ", logColors[level], kLevelStr[level],
+ // Brackets and messages are white.
+ // Log levels are red for error and warning, orange for info, and grey for trace.
+ // Then the color is reset.
+ fprintf(logger.stream, "%s[%s%s%s] ", white, logColors[level], kLevelStr[level],
  white);
  vfprintf(logger.stream, message, args);
- fprintf(logger.stream, "\n");
+ fprintf(logger.stream, "%s\n", reset);
  va_end(args);
  }
 }