E-ink reader tweaks (wishlist)

ovillo · 11-08-2026, 01:57 PM

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!

Erlend · 11-09-2026, 05:20 AM

Thank you very much for the kind words, that's great to hear!

Interface font:
JetReader should adhere to the system font size. On my Boox (Poke 3), there is a setting in Settings => System display => System Font Size, which I can set to for example Large or Extra Large. Does that help you?
(Or do you get a smaller font size in JetReader than in other apps? If so, that's not intentional.)

Dark mode also has some contrast issues
I can see that on your images, thanks! Looks a bit different on my Boox, so I can't reproduce exactly, but I'll try to make some adjustments, then you can let me know if it helped or not.

Default dark theme (reading) is not quite white on black
No, you're right. It's just dark. I'll add another one that's called "Black" that is completely white on black, that'll make it easier on the eInk screens.

The typeface in the ui
Right, the Roboto is mainly a remnant from and older rendering system I used. Will try to clean that up.

Choosing which Calibre custom columns are shown
That's a good idea! I'll add a setting for that.

I'm just finishing up the next update now, so I can't promise to include all of these in the next one, but maybe the next after that. Will let you know as I progress.

ovillo · 11-09-2026, 06:20 AM

Thanks for getting back to me so quickly!

Interface font: I already had mine at Large, and JetReader is the only app that has a smaller font size. If i set it to the max then it's comfortable, but then the sizes on all other apps are ridiculous ;D

No hurry on the rest of the tweaks. I'm already very happy with the app.

Thanks again!

Erlend · Today, 01:13 PM

I think all five are fixed in the upcoming version. The font size and color adjustments may not be perfect yet, but much better on my devices, I think. I'll let you know once it goes live, then you can let me know if it is good enough, or needs more adjustments for your device.

11-08-2026, 01:57 PM	#1
ovillo Enthusiast Posts: 48 Karma: 30 Join Date: Jan 2019 Device: Boox Go, Kindle paperwhite	E-ink reader tweaks (wishlist) 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! Attached Thumbnails

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11-09-2026, 05:20 AM	#2
Erlend Connoisseur Posts: 65 Karma: 10 Join Date: Mar 2019 Location: Norway Device: Onyx Boox Poke 3 with JetReader	Thank you very much for the kind words, that's great to hear! Interface font: JetReader should adhere to the system font size. On my Boox (Poke 3), there is a setting in Settings => System display => System Font Size, which I can set to for example Large or Extra Large. Does that help you? (Or do you get a smaller font size in JetReader than in other apps? If so, that's not intentional.) Dark mode also has some contrast issues I can see that on your images, thanks! Looks a bit different on my Boox, so I can't reproduce exactly, but I'll try to make some adjustments, then you can let me know if it helped or not. Default dark theme (reading) is not quite white on black No, you're right. It's just dark. I'll add another one that's called "Black" that is completely white on black, that'll make it easier on the eInk screens. The typeface in the ui Right, the Roboto is mainly a remnant from and older rendering system I used. Will try to clean that up. Choosing which Calibre custom columns are shown That's a good idea! I'll add a setting for that. I'm just finishing up the next update now, so I can't promise to include all of these in the next one, but maybe the next after that. Will let you know as I progress.

11-09-2026, 06:20 AM	#3
ovillo Enthusiast Posts: 48 Karma: 30 Join Date: Jan 2019 Device: Boox Go, Kindle paperwhite	Thanks for getting back to me so quickly! Interface font: I already had mine at Large, and JetReader is the only app that has a smaller font size. If i set it to the max then it's comfortable, but then the sizes on all other apps are ridiculous ;D No hurry on the rest of the tweaks. I'm already very happy with the app. Thanks again!

Today, 01:13 PM	#4
Erlend Connoisseur Posts: 65 Karma: 10 Join Date: Mar 2019 Location: Norway Device: Onyx Boox Poke 3 with JetReader	I think all five are fixed in the upcoming version. The font size and color adjustments may not be perfect yet, but much better on my devices, I think. I'll let you know once it goes live, then you can let me know if it is good enough, or needs more adjustments for your device.