the "chroma" out of space
Eso deciding to make apocrypha aesthetically varied by adding an area which isn't drenched in greens is fine; adding aesthetic variety to a daedric prince's realm is a great idea.
But then someone decided to name this new vibrant area "The Chroma Incognito". Ohhh 'the hidden/unknown colour'? interesting interesting, what does this mean? Are we going to find out what's so special about this lil area? Why 'hidden/unknown colour'? How does that relate to hermaeus mora's sphere of hoarding information?
Skipping the nothingness the game gives you for in-universe answers to these questions (you can get them by reading uesp's page on this area), and instead looking at what could influence the writers' decisions... I find myself remembering all the advertising for that chapter mentioning lovecraft. Zos really wanted everyone to know how influenced by hp lovecraft this chapter was going to be, and you can see it in soooooo many of the names and titles chosen (the tagline for the chapter story was "shadow over morrowind", y'know, like the story "shadow over innsmouth"?). Which brings us back to the "Chroma Incognito"...
It's the colour out of space. That area of apocrypha is referencing the story (and eponymous creature in it) "The Color Out of Space", by hp lovecraft. This is a problem if you've actually read the story: the chroma incognito, apocrypha, not even the entire chapter itself ha ve anything to do with the plot or themes in "The Color Out of Space" story. Hell, nothing in the chapter even comes close to working like how the 'colour out of space' monster itself works.
This little quirk is a pattern that continues with the rest of the lovecraft-influenced aspects in the necrom chapter: the supposed lovecraft influence starts AND stops at second-hand knowledge of names, like the writers haven't actually read any of the works they're supposedly pulling from. Like they're actually referring to a memeified version overheard by a friend of a friend.
"The Color Out of Space" story deals with things like slowly encroaching dread, radiation poisoning, wrongness, decay, environmental destruction, something that should not be appearing suddenly and having no control over the horror it slowly is wreaking on your life, the horror of not knowing/not having control, how dependent we are on our environment, corruption in every sense of the word, etc etc. Is any of this in any of the various bits and bobs that reference the story/creature in Necrom? Nope.
Honestly if you wanted an area that really referenced the colour out of space, it would be a brittle grey area devoid of life or energy or colour. (hmm, kinda like the greymarch...)