options:
 highlightcolor: &e
 resetcolor: &7
 sound: true

on chat:
 if message contains "@":
  set {_x::*} to message split at "@"
  set {_x::*} to {_x::2} split at " "
  set {_x::1} to {_x::1} parsed as player
  if {_x::1} is online:
   replace "@%{_x::1}%" in message with "{@highlightcolor}@%{_x::1}%{@resetcolor}"
   if {@sound} = true:
    play sound "entity.experience_orb.pickup" with volume 0.1 to {_x::1}