Display calibration of levels

[DanilaZabiaka]

Hey. I wanna change levels on my display. Using dccw I can reduce white level and make colors warm

So, r-g-b looks now more natural, but it also darker. I need to increase black level, but i have no slider for that. I can make this using intel utility, but it does not work with monitor profile, its just offset. So, color more for example than 248 will be white not

Can you extend your utility to give people color management?

Thanks