Enhanced Dark Mode

Dear Papers-Team,

I like that you implemented dark mode already.

I would love to have an improved version however that is similar to (or even compatible with) the likes of:

- Adobe Reader -> barrier free access

- web-browser plugin "Dark Reader"

Desired Features:

- no color inversion of images

- Custom color palette for less contrasty colors

- enhanced text-sharpness (in current "inverted mode" text becomes unsharp at times, especially on the Desktop-App)

Best,
JP