@mynotaurus@floofy.tech it's a combination of a few different effects! namely:
- overlay 1 with a background gradient that forms the scanlines
- overlay 2 with saturate and blur filters
- 3 drop shadows on all the foreground objects: green and magenta offset to the left and right just a tiny bit for the chromatic aberration, then a subtle blurred yellow shadow for the colour bleed
- display-p3 colour space definition for the yellow, making it more vivid than normally possible on compatible displays

if u wanna take a look at it u can just do view page source, it's all in one file; there's no comments, but it's all just basic css so it shouldn't be hard to understand i think