Oh, you have finaly found what the last params in this event do. ^^
EDIT : Oosp It was MPNumb
By the way, get_user_msgid("Fog")
should be store in a global var.
And instead of checking <0 and >255 + message, you can use directly clamp(), something like : = clamp ( str_to_num(rgb[i]), 0, 255 );. Oh well, your method is perfectly fine too.