The iA Writer typefaces are the fonts of the iA Writer text editor, derived
from IBM Plex and released under the SIL Open Font License:

- iA Writer Mono: monospaced, every glyph the same width
- iA Writer Duo: duospaced, a few wide letters (m, w, M, W) get 150% width
- iA Writer Quattro: quattrospaced proportional face for prose
- iA Writer Duospace: the original duospaced face, kept from the last
  upstream revision that shipped it

This port installs the static TrueType variants of each family.
