Incoprea Foldline
FONTLOG for the Original Version
Version 1.000 — 24 September 2026
Copyright (c) 2026 Incoprea.
License: SIL Open Font License 1.1. No Reserved Font Names are declared.

This log describes the font and the changes made to it. Please append dated
entries when distributing modified versions. See OFL.txt for the license.

DESCRIPTION

One original architectural display face, Regular weight, drawn from explicit
native vector contours. No pre-existing font was opened as a source, renamed,
stretched, filtered, traced, or used for outline derivation. The source uses
fontTools and skia-pathops to compile the author's coordinates into TrueType
quadratic outlines and to unite overlapping native shapes.

The signature is a diagonal fold meeting a softly turned corner. Large
counterforms keep poster words legible; small 24–26-unit diagonal join cuts
relate the straight letters to the large folded bowls. Selected forms have
different corner treatments rather than mechanically identical chamfers.

CASE MODEL — READ BEFORE LISTING

This is an intentional unicase display design, not a lowercase family.
ASCII a–z map to the corresponding A–Z glyphs. Encoded accented lowercase
letters also use their corresponding accented capitals. Dotless i maps to I.
The capital and lowercase sharp s (U+1E9E and U+00DF) use one explicit SS-form
ligature glyph. This is not a claim to a separately drawn traditional ß.

EXACT COVERAGE

270 encoded Unicode code points, mapping to 168 encoded glyphs, plus .notdef:
169 glyphs in total. coverage.tsv is the authoritative individual listing.

* Basic Latin: all 95 printable ASCII code points, U+0020–U+007E.
  A–Z, a–z via unicase mapping, 0–9, space and every ASCII punctuation mark.
* Latin-1 Supplement: 71 code points, individually listed below.
* Latin Extended-A: 89 code points, individually listed below.
* 15 additional code points: capital sharp s, typographic punctuation,
  euro and mathematical minus.

Additional characters, in code-point order (first is no-break space U+00A0):
 ¡¢£«°·»¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýÿ
ĀāĂăĆćĈĉĊċČčĎďĒēĔĕĖėĚěĜĝĞğĠġĤĥĨĩĪīĬĭİıĴĵĹĺŁłŃńŇňŌōŎŏŐőŒœŔŕŘřŚśŜŝŠšŤťŨũŪūŬŭŮůŰűŴŵŶŷŸŹźŻżŽž
ẞ–—‘’‚“”„•…‹›€−

The above is intentionally not described as full Latin-1 or full extended
Latin. Thorn, ogonek letters, Greek, Cyrillic, standalone combining marks,
copyright, registered trademark, trademark and numero are not encoded.
There are no zero-width glyphs, smart fractions or contextual alternates.

137 encoded characters with canonical decompositions were tested against
their decomposed text using HarfBuzz. Those supported sequences recompose
correctly. There is no mark-positioning implementation: arbitrary combining
marks and unsupported sequences require another font or fallback. NFC text
is the safest interchange representation.

TECHNICAL SPECIFICATION

Family: Incoprea Foldline
Full name: Incoprea Foldline Regular
PostScript name: IncopreaFoldline-Regular
Version: 1.000
Style: Regular, upright, static; OS/2 weight class 400, width class 5
Units per em: 1000
Cap height / effective unicase x-height: 700
Round overshoot: -8 to 708 in the principal rounded forms
Vertical stems: generally 92; horizontal strokes: generally 80–86
Typographic ascent / descent / line gap: 1000 / -250 / 0
Windows ascent / descent: 1000 / 250
USE_TYPO_METRICS: enabled (OS/2 version 4)
Embedding: installable embedding, fsType = 0
Numerals: proportional, lining
Kerning: OpenType GPOS, DFLT and latn default language systems
Expanded kerning pairs: 1359, including accented forms
No legacy kern table, to avoid duplicate kerning in mixed implementations
Outlines: simple quadratic TrueType contours, overlaps removed
Hinting: no TrueType instructions; rasterizer auto-hinting may vary
Formats: desktop TrueType (.ttf), web WOFF2 (.woff2)

24 SEPTEMBER 2026 — INITIAL ORIGINAL VERSION 1.000

* Drew A–Z, ten numerals, full printable ASCII punctuation, quotes/dashes,
  currency signs and the explicit accent set as original vector geometry.
* Created deliberate unicase cmap mappings; no fake lowercase claim.
* Used broader lower B/8 bowls, open G, a projecting Q tail, a separate R leg,
  a flagged/footed 1 and a narrower 0 to preserve important distinctions.
* Optically balanced the M inner slopes after the first rendered proof.
* Re-anchored the J/L accents above their upper stems and corrected the
  optical centering of acute, grave and double-acute marks after contact-sheet QA.
* Added asymmetric pair-specific kerning, e.g. AV -72, AT -64, VA -76,
  and To -30 (To displays TO under the unicase mapping).
* Set metrics to accommodate the ring accents, cedilla and punctuation.
* Built TTF and WOFF2 and compared every decoded contour and metric.
* Shaped and rasterized every nonspace encoded character, checked canonical
  decomposition behavior, counter counts and every kerned pair for outline
  collisions. Full numeric results are in validation.json.
* Rendered the main specimen, all-character contact sheet and paginated
  contact sheets, kerning-on/off comparisons and 24–112 px size proofs.
* Supplied editable coordinate source, pinned build requirements, a local
  interactive HTML specimen, CSS, exact coverage, production notes and hashes.

This handoff is a local review candidate for the main font-library agent.
No font-library page, other font file or public deployment was changed.
