Hello and sorry in advance for my poor english.
There are a lot of things I want to ask, and I did not know where would be the best place to post in.
I discovered last year only the e-ink technology, and as I was very interested in the potential of it- especially the low needs in battery (I hate to have to plug my smartphone all the time)- I bought a Kobo Glo.
I then played a bit with it, learned about the epub format and encoded some with worse results than I'd have expected (poor css support).
I don't think I've upgraded the firmware yet.
I would like to know what I should install on my Kobo to improve it. I don't know if any firmware or regular software might better the responsiveness, the browsing of my books (5 books by 5 currently???), and broaden the css support of epub (epub3 support?? ^^ but my main problem is the absence of the pseudo elements :after and :before, and the custom fonts?).
Also, I bought a book that I liked very much when I was a kid: Charmed Life of Diana Wynnes Jones. However, my best paper version of it has illustrations of a specific artist, which of course are not included in the ebook (it would have costed more to them). Due to that, I want to scan my paper book, and include the illustrations. But I don't really want to edit the "official" ebook, and I would like to be able to sideload them, a bit like one can sideload subtitles files in a movie.
Since I've read it is possible to sideload css, I've thought about a program that would load side files which contain elements to inject in the DOM (epub).
For instance, if a file named "customElements.txt" with the lines "document[2].body.section[2].p[8].word[3].after = img('illustration.png');" can be sideloaded and interpreted, I could be able to edit a book (add comments, illustrations, custom css, whatever) without directly editing it. Does any program let you do that, or should it be coded? And if it's to be programmed, is there a Kobo API somewhere?
Finally, I'm seeing "color e-ink" videos on youtube, but I don't see any in the market yet where I live. I'd like to buy one of these in the future, in the A4 format (bigger than pocket book) so it will be nice with european comic books (A4).
Since not everything is best viewed in A4 format, is it possible to slice the screen into 2 A5 parts with big current e-ink devices (and rotate the device)? The same way we see 2 pages when we open a regular book?
Thank you for your time.