Data config program

You can modify smelting time in the game settings.

Any SQL tool can read definitions.db for the new version database. I am using DBBrowser from SQLite but I know nothing about SQL tools. I looked at things but did not write anything out yet as I do not want to deal with redoing it again when the new patch changes the database.

But as other poster said some settings are in config files, some in settings UI that writes the config file, but not everything is there - like you can use settings to change plant growth timers but not the timer stages for carrots that is in the database.