This mod is designed to correct this problem, by copying custom config files to the game directories, but only when the file doesn't already exist. However, when a modpack doesn't ship files such as options.txt, the modpack often ends up with many conflicting control key mappings, which can often break mods, or cause confusion for players. This is very frustrating for players, when they've spent time setting up their control keys, only to find the settings overwritten when the modpack is updated.
It's generally a bad idea for modpack developers to ship files such as options.txt in their modpacks, as each time the modpack updates, user configured options would be overwritten by the version of the file that ships with the modpack. Note that the mod has zero overhead once the game has loaded and will release all memory used before you start playing, as it is only used during the loading screen. This mod is a highly customisable, yet extremely lightweight mod that allows modpack developers to create many custom default in game options. Not only does it support the vanilla options.txt file, but it also supports mods that are configured in game, for example, JourneyMap and FTB Utilities.
