Firstlight settings for cRGB to sRGB and vice versa
 

What settings would be good for going from cRGB to sRGB?

How about from sRGB to cRGB?

FirstLight will display RGB black at 0,0,0 on an RGB display and 16/64 on a YUV device like over HDSDI/HMDI. If you are not apply LUTs, cgRGB to vsRGB and vise-versa can be done with Lift and Gain controls alone.

vsRGB to cgRGB
LiftRGB to -0.063, GainRGB to 1.164

cgRGB to vsRGB
LiftRGB to 0.063, GainRGB to 0.859

Then export as a LUT, so you can just apply LUTs to make this conversion.