Due to the changes in CommandAPI plugin, I can no longer easily support both Spigot and Paper at the same time. Therefore I have decided to make this plugin Paper only.

Admin commands have been renamed to avoid permission checks collision:
/cm set -> /cm adminset
/cm show -> /cm adminshow
/cm adminreset -> /cm adminreset
/cm adminreload -> /cm adminreload

You can add global prefix to all join/leave message through the config. By adding these two lines:

custom_join_message_prefix: ""
custom_leave_message_prefix: ""

The plugin is now compatible with 1.21.1

Support for 1.20.
You can now set messages of other players directly through commands.
Added support for tab-autocompletion.
Default join/leave message can be set through config file.
Show command will preview colors.

Added 1.16 HEX colour codes support, updated plugin for 1.16