Some info for example.
I know that some of you'd like to change shutdown picture on e-ink side. And it's possible.
The pictures located at system/esi/bin/mct_active.ppm (portable image format). But it's useless unless you rooted your device first. On the other side, as far as I see there's a way to make some change with root permission directly from android (and without rooting EE first). But I don't know how to do it, yet. So looking for advices.
The same with e-ink display frameboofer (fb2) which can be accessed only by root or graphics (so we need another apps to bypass this)
The same with e-ink properties (probably I found the way to turn on 16 grey level and to rotate on 90,270') but it's blocked right in EE software.

There's very many opportunities, but I haven't time to do this alone.