Textures for 3D materials:
You need to preserve the look of the colors?: Utility - sRGB - Texture
Diffuse
SSS
Albedo
Spec
Metallicity
You need to preserve the numeric values of you pixels?: Utility - Raw
Bump
Normal
Displacement
You need your image to look as though you opened it up in Photoshop?: Output - sRGB
Backplates or Compositing