Is it only black and white?

Looks like it.
Certainly fits a world where apocalyptic ash storms seem to be the norm.
Going to pick this up for sure.

Edit:
Screenshots suggest the presence of at least, red, for environmental story-telling and indicating injuries.

will wait for the "Color DLC" XD

I have to say, I will never understand the survival genre, nor where the fun is in exploring the grimdarkest of kill-yourself level miserable scenarios. But hey, whatever floats your boat I guess. At least it does look very stylish. But me, I'll stick to stuff with a bit more colour... literally and figuratively.

More like lazy developers.

It'd probably be stupidly and inappropriately woke. At least entitled trust fund babbies in Life Is Tumblr had a reason to be woke. I'll pass.