an outline filter would be nice
I'll try to implement that in the next update! Though, could you be more specific and explain what the "Outline Filter" does? Could you maybe send me some examples?
You can contact me at Polyshade.Support@proton.me
it should be something like a "sketch" filter, it should add a black (maybe you can change the color and opacity?) line when there is contrast between 2 areas. That way, when you have, for example, a brick wall, with this filter, you get a borderlands-like look, since it will add some comic book style black lines on contrasty spots.