Below is a sample of a language definition file for config.exe, with some comments provided.
language = English // window title title = Re:Dnh Configuration Utility (English) // tab names title.graphics = Graphics title.key = Key title.option = Option // graphics tab graphics.windowstyle = Window Style graphics.windowstyle.fullscreen = Fullscreen graphics.windowstyle.window = Window graphics.windowsize = Window Size graphics.frameskip = Frameskip graphics.frameskip.full = 1/1 (Recommended) graphics.frameskip.half = 1/2 graphics.frameskip.third = 1/3 graphics.frameskip.auto = Automatic graphics.misc = Miscellaneous graphics.misc.vsync = Enable vertical sync graphics.misc.borderless = Enable borderless windowed fullscreen graphics.misc.integerscale = Use integer scale values in fullscreen mode (DOT by DOT) // input tab input.paddevice = Pad Device input.list.action = Action input.list.keyboard = Keyboard input.list.action.left = Left input.list.action.right = Right input.list.action.up = Up input.list.action.down = Down input.list.action.accept = Accept input.list.action.cancel = Cancel input.list.action.shot = Shot input.list.action.bomb = Bomb input.list.action.slow = Slow input.list.action.user1 = User1 input.list.action.user2 = User2 input.list.action.pause = Pause // option tab option.list.option = Option option.list.option.showlogwindow = Show LogWindow option.list.option.savelogfile = Save Log file option.list.option.hidemouse = Hide mouse cursor