Popular Color/Light Bleeding Effect

Searching for aid in hunting down this recently popular effect from Unity games across the board. (2D/3D alike.) Not entirely sure how to describe it, so I'll leave that to the photos below. The mild similarity reminds me mildly of lens/light flares from recent AAA games, however these are not placed and are simply a reaction to light. I imagine it's a post-processing effect, as it acts mildly like bloom.

Not looking for a script, but simply a name for what this effect is or even an asset that replicates this would be more than amazing. Thanks for your time, regardless.