MBFace
constructor(faceTooFarAway: String = "Face too far away", faceTooFarUp: String = "Face too far up", faceTooFarDown: String = "Face too far down", faceTooFarLeft: String = "Face too far left", faceTooFarRight: String = "Face too far right", faceTooClose: String = "Face too close", faceNotFound: String = "Face not found", tooManyFaces: String = "Too many faces", validFace: String = "Valid face")