lua-index.txt

global -- version, screen width, height
mutt-level vars, (read-only)
account, no password
folder, full path, canonical
index info: size, current pos, last update, dirty
email: fold level, parent, num children, siblings
email headers: is-body-cached?
flags, attachments (if known), pgp signature
function fails, default to mutt's normal view
To, From, etc lists
Address: is_alias?
State preserved between calls
Pre/Post index lua call?
Option to hide (limit) the email
fixed expandos, e.g. %+L3, or let lua do it?
	fixed => coordination needed between config and lua
how to colour the output?
how to format the fields?