You can use it with PlaceholderAPI, if you are not familiar with the plugin, Check the documentation on how it works (click here)
You can use it with ProtocolLib packets. This feature make it to work on your chat without the help of placeholders and can work on almost any server message. Check the documentation on how it works (click here)
ProtocolLib support For now works on
Server Messages - Messages sent from plugins.
Title - Titles sent from the server.
Subtitles - Subtitles sent from the server.
Entities - Can modify mobs names.
Holograms - Can modify every hologram. (not working good in 1.16, will add it later)
Scoreboard - Every line and title of the sb.
Tab - Footer and Header.
PlayerList - Every players name.
Actionbar - Actionbars sent from the server.
Bossbars - Created bossbars from the server.
MOTD - When the player pings the server.
Sign - Can modify content from signs (not working good in 1.16, will add it later)
We will add more features and it will support many more in the future