This is a small patch, but it should punch above its weight class in terms of quality of life.
1) If the player selects a different language, that new language is now saved. It no longer needs to be reset every time the game is launched.
2) There's now a button on the Options Screen for Windowed mode. If the player changes from full screen to windowed mode (or back) via F11 or by the shiny new button, that choice is saved and will be set when the game is launched..
Happy building!