thanks. you don't need to put your email if you don't want to. you can literally put anything and don't even need a passphrase. i just chose email as its something everyone remembers.
I will look into the code, at least to the level of what input is used, hopefully someday even deeper.
i was thinking maybe to run a contest just for fun on who can make the coolest paper wallet artwork.
Well, it could be a nice advertising, but that's not really my field.
I checked it, I liked it, I packed and copied it to keep it safe, since I may used it someday - for its real life use or to learn more.