The upcoming remake of Super Mario RPG uses an effect that adds a 'colorful fog'(I'm really struggling to describe it 😅) to certain parts of the screen. It's mostly used in the corners and top of the screen. I specifically want to replicate how they managed to contain this effect to certain areas of the screen while still keeping other parts' colors saturated and vibrant.
Here are some examples of the effect in question:
And here's a link to the game in motion. Some timestamps where the effect is present are:
1:22, 1:30, 2:07
Is anyone able to please educate me on what this effect is and how it can be recreated in Unity(URP)?
Thanks so much for taking the time!😊