NiLuJe

IIRC, anything > 0.6.4 was not built by @chrox, and as such may be built using the "wrong" Java JDK/bytecode version, making it inoperable on older FWs.

In any case, newer versions have zero interest for such an old FW, so, you're not really missing anything ;).

Not without (really) extensive work.

Calibre doesn't have to directly interact with the Kindle Framework. KPVBooklet does (as in, it's really, really directly plugged in there). It's far, far, far more complex than that, and...

FW >= 5.9.x is probably when things will start to take a turn for the worse on some devices, and FW 5.10.x pretty much everywhere else, from my experience w/...

Well, that one's easy: this is and has always been FW 5.x only ;).

It's waaaaaaay EoL, so, no, use KUAL?

I'm not sure there's really any cute trick to it. IIRC, stuff just mostly ignores the panel events while in ["pen mode"](https://github.com/NiLuJe/FBInk/blob/de366433554f1dceb1b419d280ed80465ee1d5cc/utils/finger_trace.c#L304-L324).

I'd have to actually check, but I'm guessing it just chucks all finger touch events, period. (I don't recall if the elan driver reports accurate tool areas on these devices).

One thing to keep in mind about the pen's buttons is that they don't actually generate events on their own. If the pen is near your screen but not actually...