Very quick suggestion, which I may come back later to edit.

I like using different layout theme on my two accounts as it means I always know which account I am using. The dark theme is much easier on the eyes.

This is a very basic suggestion for some sort of jungle(?) layout theme which uses darker/muted greens as an alternative dark theme.

VERY basic idea of the colours which it would sort of relate to. All text in the below image would also need changing.

In my head the colours were much darker/moodier but I am terrible at colour stuff.



(I do not have the ability to make a better mock-up that the above, and would very much appreciate anyone who is able to do a better job than I!)