Vintage Kinetoscope 1920, bu with color?

Hi! I love the kinetoscope vfx, but how can I keep the color in the scene? The Reason I want to do that is that the black/white look will be made with textures and I want to tweak saturation in my textures/materials. I do find the Color value parameter far to right in the blueprint, but the colors are already kind of inverted/distorted in a much earlier stage in the blueprint and i cant find out how to bring back the original color to somewhat closer to how it was.).