FACE_DIRECTION
FACE_DIRECTION: "FaceDirection"
FACE_FAR
FACE_FAR: "FaceFar"
FACE_MOVEMENT
FACE_MOVEMENT: "FaceMovement"
FACE_NONE
FACE_NONE: "FaceNone"
FACE_OFF_TARGET
FACE_OFF_TARGET: "FaceOffTarget"
IMAGE_BACKLIT
IMAGE_BACKLIT: "ImageBackLit"
IMAGE_BRIGHT
IMAGE_BRIGHT: "ImageBright"
IMAGE_DARK
IMAGE_DARK: "ImageDark"
IMAGE_QUALITY
IMAGE_QUALITY: "ImageQuality"
Constraint Feedback enum