FSAL
Full Screen Assistant for LÖVE
...FSAL provides a function to easily handle full screen mode when creating games with the LÖVE framework. (LÖVE: https://love2d.org/)
With FSAL you can easily implement full screen mode in your own games. You will also be able to easily implement the ability to switch between full screen mode and window mode.
Furthermore, FSAL makes it very easy to create games that support freely resizable windows. It's beautiful! Try this!!!