How do I apply settings to this game? I want to change the language and graphics settings, but as soon as I close them, nothing changes.
Graphic settings apply to the night portion of the game, if you're on android, then lightning and shaders are disabled for optimization purposes.
As for languages, you must have seen the annotation regarding partial or incomplete translation, so taking this and the game's current version into consideration, you should realize that not everything is yet translsted and there may be some things still in English.
Besides, all translations are stopped for the time being, as dev is constantly adding more game script and changing the existing one.
Cheers