I made a grayscale theme

[panzerkampfwagyu]

https://mangadex.org?theme=AAMxLjEB...QUFD_JHFxcf8lODg4_yaenp7_J6CgoP8ohoaG_ylwcHD_

I saw in the suggestions that one was intended for the planned features: "Add theme that only uses greyscale colours to make MD render properly on e-readers."

So, apart from Dex-Chan and some tweaking of the luminosity levels, I think this would be it

 

[Doedoel]

I love it. It feels good on my eyes.

 

[panzerkampfwagyu]

Oh yeah, also the pages and previews all need to be grayscaled, but that should be relatively simple with a CSS Filter.