central_message/settingtypes.txt

#Maximum number of messages in the center displayed at once.
#Use 0 for no limit.
central_message_max (Maximum number of central messages) int 7 0

#How long (in seconds) a message in the center is shown.
central_message_time (Central message duration) int 5 1

#Message color of all messages shown in the center (R,G,B).
central_message_color (Central message color) string (255,255,255)