The word "infinite" when typing out a /effect command doesn't have a colour.
MC-259625
"Infinite" does not have a colour when typing the command
Resolved
Works As Intended
0
Because it is a literal keyword, just like "give" there.
This is consistent with other commands with literal arguments that aren't variables.
the syntax is now
/effect give <target> <effect> [<duration>|infinite] [<amplifier>] [<hide particles>]
Infinite is not a duration value, but a separate literal keyword.