Hi Michael,
First you should know that the image settings on the back are basically tagged to the RAW file so that when you open it in Leaf Capture it will already have all the parameters for colour, contrast, WB, sharpness etc.
You can also create your custom settings in Leaf Capture and load them onto the CF card/s. That's why there's a setting for Saturation there and so on.
If you are not using Leaf Capture then you can set your WB and shoot away. If you use Capture One then you can also set the Colour Look (ICC profile) and Develop Curve (Contrast).
Regarding the different Colour looks; those are the ICC
Input profiles (as opposed to Output ICC profiles, which you can select in the Colour Space setting, such as Adobe 1998 etc.
LF3 profiles are designed for the 40, 56 and 80MP sensors whereas LF2 are made for the 22, 33 and 28MP sensors.
HS stands for
High
Saturation so it's a more saturated version of the standard profile
Y stands for
Yellow for Yellowish skintones
Warm has more Red in it
5 is an improved version of
4Prophoto RGB is a wide gamut, low contrast profile which some prefer to use as a starting point as it is fairly close to the gamut seen by the sensor.
The display on the Aptus is designed to simulate and reflect the chosen settings, so if you shoot with a
Portrait curve the image will look flatter than an image shot with a
Product curve and the same goes for sharpening and colour
You can read more about it in the Leaf Capture User Guide which is available
here (from page 72 onward)
Once again these are only tags and they can be changed post-capture. The only setting that is embedded is iso...
Hope this helps
Yair