Then go separation lights, which are backlight and background lights. With background light there's nothing complex, but other light functions are not very clear to me.
There are several separation lights, which I call backlights, thought they have separate names:
and even glow
So in some sources I read rim light is placed just infront of the camera, so the subject hides it, so 180 degrees from the camera axis. As far as I understand, it does a very thin lighting of the rim, may be very subtle. Very suitable for hair and stuff like this.
Kicker is enhancement and can be considered as a modeling light, and placed around 135 degrees from the camera axis.
What are liner and glow lights? Glow is placed about 90 degrees from the camera axis, so I guess it adds a subtle glow? And liner is a bit further. Their functions are not clear to me. Hope someone knows?