/**
  * Set color tolerance for blue beacon detector
  *
  * @param tolerance A color tolerance value from -1 to 1, where 0 is unmodified, 1 is maximum
  *     tolerance (more colors detect as blue), -1 is minimum (fery vew colors detect as blue)
  */
 public void setColorToleranceBlue(double tolerance) {
   beacon.setColorToleranceBlue(tolerance);
 }