E-ink reader tweaks (wishlist)

[ovillo]

First of all, can I say I'm impressed with Jetreader! 24 hours and I might be in love. Finally I can access my calibre library and read in the same app, with everything mega customizable. I've been looking for a solution like this. I'm currently using it in iOS and a Boox Go 7 b&w. The latter I'm having a few issues with.

- The interface font is very small. For my middle aged eyesight it's a strain to see the options, but this is made worse in dark mode. tiny font+ not quite white text in e-ink display= very faint and hard to make out. It would be great to be able to configure ui font size, or otherwise, 2px bigger would make a big difference.
- dark mode also has some contrast issues. controls like sliders, for example, lose parts.
- The default dark theme (reading) is not quite white on black. I could customize this, but actually the previous issue made it hard for me to notice that the rgb sliders were not all the way to one side.
- The typeface in the ui- the titles are using what I'm assuming is roboto, while the rest are using my default system font (I have it set to Google Sans). Would prefer if it all used my default font.

Not display related, but my other wish would be choosing which Calibre custom columns are shown in the book details page and possibly in the filter options? There's, for example, columns i use only for generating other columns and just clutter the view. But this is a small wish.

I am attaching some pictures, not screenshots, actual photos so you can get a sense of how it looks "through" the e-ink display.

Thank you for an amazing app!