i've seen you mentioned this in the mod description; still, here's an issue to track the progress.

is the file type limited to toml for a reason, or are other file types "just" not yet implemented?

I need to update the description. I've already put in a fallback where it just overrides the file. So they work.

check or post logs. It would work with any file, unless it was blocked somehow.

all of these file types? even *.json5? because i've tried with the REI config and... nothing happened when switching modes, tested with the overlayEnabled option in the config

yeah... you're right. restart was required, but i never noticed because i kept switching in-game which meant whenever i would eventually restart, it was back to the mode i had when first starting the game. thanks for your time <3