The tag alias #56307 deeptriviality -> chromatophore has been approved.

Reason: Same artist, see their profiles.

EDIT: The tag alias deeptriviality -> chromatophore (forum #325848) has been approved by @bitWolfy.

Should go the other way around.
More recent images are signed chromatophore. Example from 3 months ago: https://www.furaffinity.net/view/44020641/

The Chromatophore FA says, "formerly known as deep triviality".
The Deep Triviality patreon is dead.
The Deep Triviality DA is deactivated.
The Deep Triviality Furry Network was last updated in 2016.

Admittedly, I can't find any links from a Deep Triviality account to Chromatophore, but that shouldn't be an issue since all the posts here have Chromatophore source links.

On a side note, a chromatophore is a special kind of body cell that changes color according to the environment. Octopi frequently have them. It's also likely where the artist got the name.

Of course, the likelihood of someone tagging chromatophore on body cells is extremely low as other tags would be far more appropriate.