Monotext - Initial specification

Monotext names a typesetting style for monospace plain text
that follows the conventions of typesetting using a typewriter.

Each Monotext document follows these rules:

- A fixed maximum line width.
- Hard wrapped lines. (Line breaks create all new lines.)
- One monospace font. Restricted to:
-- One font-size.
-- One font-weight (regular).
-- One font style (upright).
-- One line height.
- One background hex.
- One content hex.
-- Ideally, at least 50% contrast between the two.
--- I.E. Greater contrast than black on middle grey (#808080).
- Space characters create any horizontal whitespace.
- Line breaks create any vertical whitespace.
- Any visible characters that typeset copy use an ASCII subset:
-- The subset of ASCII 128 common to typewriters and computers
-- A-Z   a-z   0-9   -=/',;.   _+":?!@%&()*

These restrictions typeset text to display the same everywhere.
The tool typesets copy to meet these conditions.

STYLE
- Any divider line precedes any header of the section it starts.