Post-Processing FX
Link to Post-Processing FX
The most efficient, easiest and robust post-processing library available for GameMaker.
Post-processing is a generic term for a full-screen image processing effect that occurs after the overall rendering of the game. Post-processing can drastically improve the visuals of your game with little setup time.
The image below demonstrate a scene without and with post-processing:
Using the optional UI to edit effects in real time:
Post-Processing FX is a library that contains not only effects, but many useful related features. Check everything out on the website.
Check out the documentation too!