Pure Dark Mode Option

[KAVASKAR95]

Please add a pure dark mode theme. Current app theme has a green or white tint, which looks unappealing. If possible, please add an option to enable pure dark mode.

[theeldritch]

I would like other options for custom colors as well. I don't know if that's possible to add alongside. DEFINITELY NOT MATERIAL YOU COLORS. I can't stand those. Makes me sad so many people use that in their apps. Aesthetically.