This detects that the currently selected wallet is fully encryted and if
it is, it shows a password request page on top of the current screen.
The default setup aims to have people type a PIN in numbers to unlock
the wallet, but we also provide a way to make it use a textual password
instead.
We ship our own font to not have to depend on the host system's
installed fonts for 'special' characters like arrows and stars.
This is a font forked from the Gnu-free font people, only since that one
is 2MB this is a very much stripped down version with just all the fun
stuff left.
tomFlowee