I noticed when looking super close at your line art that the there's slight red green and blue on the sides of the lines like an old 80s anime and i think that's super cool! How do you do it?
oh, that's chromatic aberration! i guess you could say its a kind of colour/visual distortion.
it's pretty simple to do, but i usually just use a csp auto action to do it for me to make things go quicker, but i can teach you how to do it manually in most programs.
i'm going to use this silly doodle of me as pompompurin as an example lol
youre gonna wanna merge everything onto a single separate layer first and then we're gonna work with that merged layer. make two copies of that merged layer so you have three of them in total.
the top merged layer will be our red layer, so youre going to want to got to EDIT > Tonal Correction > Level Correction
the level correction graph will pop up. since the top layer will be our red one, select the green level and drag the rightmost arrow on the Output scale all the way to the leftmost side. do the same for the blue level.
the image should be red like this afterwards.
the middle layer is going to be our blue layer so do the same thing we did for the top layer except youre going to reduce the green and red levels instead, and the middle layer should be all blue like this.
for the bottom layer, it will be our green layer. same process as before, reduce the red and blue levels so its all green.
your layers should be looking like this now
from here, you want to set the layer modes of the red and blue layers to Screen, DON'T do the same for the bottom green layer though. you'll notice once you've done that, the image will look normal again!
from here, all you need to do is shift the red layer in one direction, and the blue layer in another, to as much of an extent you want. the further they are from each other, the more drastic the effect will be
and that's how you do it! my other personal tip would be to add a layer of noise set to Overlay or Soft Light at a lowered opacity over the drawing bc it goes well with the aberration, or even sharpen the image.
if you dont want to do all that hard work though and you happen to have clip studio paint, just use an auto action, like this one!:
https://assets.clip-studio.com/en-us/detail?id=1713222
anyway i hope that helps? ^^;;;
