constructor style panel fig fig appear init choic document bbox doc bbox field document bbox doc add document listen bbox field add kei listen bbox field add focu listen field add item listen line field add item listen stereo field add item listen field set render color render line field set render color render bbox label set label bbox field add bbox label add bbox field label set label field add label add field line label set label line field add line label add line field stereo label set label stereo field add stereo label add stereo field 