Currently, the logger() function in Scarpet always uses the error log type, and there is no way to change it.
My suggestion would be an argument to specify the "severity" of the message to be logged, since currently the only way to change this is by using print() instead of logger(), which would use the regular info log type, but would also print the message in chat in most cases, and still debug, warn and fatal are unreachable.

(names based in the vanilla launcher's output log viewer)

good idea

working on it

cool. Won't be touching it then.
suggest
logger(msg) or logger(level, msg) where level ~ {'debug', 'warn', 'fatal', 'info', 'error'}

yeah, thinking smth like that