Right now, no, as brussell said.
There are some things on the idea list that actually would make that possible: I might at some point add a way to dump and replace ingame shaders (replaced with shaders written in ReShades shading language again). Maybe even automatically convert the Direct3D shader assembly back to high level shader code and the same for plain GLSL dump to allow understanding and editing them without major shader skills on assembly level.
But that's on the far future list, nothing I'm too worried with right now. Something to do once the core works. =)