Please host your font project on a public Git repo (such as GitHub or GitLab) and place a link in the DESCRIPTION.en_us.html file. [code: lacks-git-url]

The last characther on DESCRIPTION.en_us.html is not a line-break. Please add it. [code: missing-eof-linebreak]

OS/2 VendorID value 'IMPA' is not yet recognized. If you registered it recently, then it's safe to ignore this warning message. Otherwise, you should set it to your own unique 4 character code, and register it with Microsoft at https://www.microsoft.com/typography/links/vendorlist.aspx [code: unknown]

Missing required codepoints:

- 0x0308 (COMBINING DIAERESIS)


- 0x0300 (COMBINING GRAVE ACCENT)


- 0x0301 (COMBINING ACUTE ACCENT)


- 0x030B (COMBINING DOUBLE ACUTE ACCENT)


- 0x0304 (COMBINING MACRON)


- 0x1E9E (LATIN CAPITAL LETTER SHARP S)


- 0x0307 (COMBINING DOT ABOVE)


- 0x0302 (COMBINING CIRCUMFLEX ACCENT)


- 0x030C (COMBINING CARON)


- 0x0306 (COMBINING BREVE)


- 0x030A (COMBINING RING ABOVE)


- 0x0303 (COMBINING TILDE)


- 0x0312 (COMBINING TURNED COMMA ABOVE)


- 0x0326 (COMBINING COMMA BELOW)


- 0x0327 (COMBINING CEDILLA)


- 0x0328 (COMBINING OGONEK)

[code: missing-codepoints]

The following codepoints supported by the font are not covered by any subsets defined in the font's metadata file, and will never be served. You can solve this by either manually adding additional subset declarations to METADATA.pb, or by editing the glyphset definitions.

• U+02C7 CARON: try adding one of: canadian-aboriginal, tifinagh
• U+02C9 MODIFIER LETTER MACRON: not included in any glyphset definition
• U+02D8 BREVE: try adding canadian-aboriginal
• U+02D9 DOT ABOVE: try adding canadian-aboriginal
• U+02DB OGONEK: try adding canadian-aboriginal
• U+02DD DOUBLE ACUTE ACCENT: not included in any glyphset definition
• U+030F COMBINING DOUBLE GRAVE ACCENT: not included in any glyphset definition
• U+0311 COMBINING INVERTED BREVE: try adding coptic
• U+0394 GREEK CAPITAL LETTER DELTA: try adding greek
• U+03A9 GREEK CAPITAL LETTER OMEGA: try adding greek
• U+03BC GREEK SMALL LETTER MU: try adding greek
• U+03C0 GREEK SMALL LETTER PI: try adding greek
• U+1EB8 LATIN CAPITAL LETTER E WITH DOT BELOW: try adding vietnamese
• U+1EB9 LATIN SMALL LETTER E WITH DOT BELOW: try adding vietnamese
• U+1EBC LATIN CAPITAL LETTER E WITH TILDE: try adding vietnamese
• U+1EBD LATIN SMALL LETTER E WITH TILDE: try adding vietnamese
• U+1ECA LATIN CAPITAL LETTER I WITH DOT BELOW: try adding vietnamese
• U+1ECB LATIN SMALL LETTER I WITH DOT BELOW: try adding vietnamese
• U+1ECC LATIN CAPITAL LETTER O WITH DOT BELOW: try adding vietnamese
• U+1ECD LATIN SMALL LETTER O WITH DOT BELOW: try adding vietnamese
• U+1EE4 LATIN CAPITAL LETTER U WITH DOT BELOW: try adding vietnamese
• U+1EE5 LATIN SMALL LETTER U WITH DOT BELOW: try adding vietnamese
• U+2003 EM SPACE: not included in any glyphset definition
• U+2021 DOUBLE DAGGER: not included in any glyphset definition
• U+2030 PER MILLE SIGN: not included in any glyphset definition
• U+2070 SUPERSCRIPT ZERO: not included in any glyphset definition
• U+2075 SUPERSCRIPT FIVE: not included in any glyphset definition
• U+2076 SUPERSCRIPT SIX: not included in any glyphset definition
• U+2077 SUPERSCRIPT SEVEN: not included in any glyphset definition
• U+2078 SUPERSCRIPT EIGHT: not included in any glyphset definition
• U+2079 SUPERSCRIPT NINE: not included in any glyphset definition
• U+2080 SUBSCRIPT ZERO: not included in any glyphset definition
• U+2081 SUBSCRIPT ONE: not included in any glyphset definition
• U+2082 SUBSCRIPT TWO: not included in any glyphset definition
• U+2083 SUBSCRIPT THREE: not included in any glyphset definition
• U+2084 SUBSCRIPT FOUR: not included in any glyphset definition
• U+2085 SUBSCRIPT FIVE: not included in any glyphset definition
• U+2086 SUBSCRIPT SIX: not included in any glyphset definition
• U+2087 SUBSCRIPT SEVEN: not included in any glyphset definition
• U+2088 SUBSCRIPT EIGHT: not included in any glyphset definition
• U+2089 SUBSCRIPT NINE: not included in any glyphset definition
• U+2116 NUMERO SIGN: try adding cyrillic
• U+2120 SERVICE MARK: not included in any glyphset definition
• U+2126 OHM SIGN: not included in any glyphset definition
• U+212E ESTIMATED SYMBOL: not included in any glyphset definition
• U+2153 VULGAR FRACTION ONE THIRD: not included in any glyphset definition
• U+2154 VULGAR FRACTION TWO THIRDS: not included in any glyphset definition
• U+215B VULGAR FRACTION ONE EIGHTH: not included in any glyphset definition
• U+215C VULGAR FRACTION THREE EIGHTHS: not included in any glyphset definition
• U+215D VULGAR FRACTION FIVE EIGHTHS: not included in any glyphset definition
• U+215E VULGAR FRACTION SEVEN EIGHTHS: not included in any glyphset definition
• U+2202 PARTIAL DIFFERENTIAL: not included in any glyphset definition
• U+2206 INCREMENT: not included in any glyphset definition
• U+220F N-ARY PRODUCT: not included in any glyphset definition
• U+2211 N-ARY SUMMATION: not included in any glyphset definition
• U+2219 BULLET OPERATOR: try adding tai-tham
• U+221A SQUARE ROOT: not included in any glyphset definition
• U+221E INFINITY: not included in any glyphset definition
• U+222B INTEGRAL: not included in any glyphset definition
• U+2248 ALMOST EQUAL TO: not included in any glyphset definition
• U+2260 NOT EQUAL TO: not included in any glyphset definition
• U+2264 LESS-THAN OR EQUAL TO: not included in any glyphset definition
• U+2265 GREATER-THAN OR EQUAL TO: not included in any glyphset definition
• U+25CA LOZENGE: not included in any glyphset definition
• U+F6C3 : not included in any glyphset definition
• U+FB00 LATIN SMALL LIGATURE FF: not included in any glyphset definition
• U+FB01 LATIN SMALL LIGATURE FI: not included in any glyphset definition
• U+FB02 LATIN SMALL LIGATURE FL: not included in any glyphset definition
• U+FB03 LATIN SMALL LIGATURE FFI: not included in any glyphset definition
• U+FB04 LATIN SMALL LIGATURE FFL: not included in any glyphset definition
• U+FB06 LATIN SMALL LIGATURE ST: not included in any glyphset definition

Or you can add the above codepoints to one of the subsets supported by the font: latin, latin-ext, menu [code: unreachable-subsetting]

First line in license file is:

"copyright 2012 the libre caslon display authors (https://github.com/impallari/libre-caslon-display)"

which does not match the expected format, similar to:

"Copyright 2022 The Familyname Project Authors (git url)" [code: bad-format]

Please consider using HTTPS URLs at name table entry [plat=1, enc=0, name=13] [code: http-in-description]

Please consider using HTTPS URLs at name table entry [plat=3, enc=1, name=13] [code: http-in-description]

For now we're still accepting http URLs, but you should consider using https instead. [code: http]

Please consider using HTTPS URLs at name table entry [plat=1, enc=0, name=13] [code: http-in-description]

Please consider using HTTPS URLs at name table entry [plat=1, enc=0, name=13] [code: http-in-description]

Please consider using HTTPS URLs at name table entry [plat=3, enc=1, name=13] [code: http-in-description]

Please consider using HTTPS URLs at name table entry [plat=1, enc=0, name=13] [code: http-in-description]

Please consider using HTTPS URLs at name table entry [plat=3, enc=1, name=13] [code: http-in-description]

Please consider using HTTPS URLs at name table entry [plat=1, enc=0, name=14] [code: http-in-license-info]

Please consider using HTTPS URLs at name table entry [plat=3, enc=1, name=14] [code: http-in-license-info]

For now we're still accepting http URLs, but you should consider using https instead. [code: http]

ttfautohint used in font = 1.6; latest = 1.8.4; Need to re-run with the newer version! [code: old-ttfa]

METADATA.pb: Copyright notices should match a pattern similar to: "Copyright 2020 The Familyname Project Authors (git url)" But instead we have got: "copyright 2012 the libre caslon display authors (https://github.com/impallari/libre-caslon-display)" [code: bad-notice-format]

Name Table entry: Copyright notices should match a pattern similar to: "Copyright 2019 The Familyname Project Authors (git url)" But instead we have got: "Copyright 2012 The Libre Caslon Display Authors (https://github.com/impallari/Libre-Caslon-Display)" [code: bad-notice-format]

Name Table entry: Copyright notices should match a pattern similar to: "Copyright 2019 The Familyname Project Authors (git url)" But instead we have got: "Copyright 2012 The Libre Caslon Display Authors (https://github.com/impallari/Libre-Caslon-Display)" [code: bad-notice-format]

Value of repository_url field is

But font copyright string has: https://github.com/impallari/Libre-Caslon-Display [code: mismatch]

This is a hinted font, so it must have bit 3 set on the flags of the head table, so that PPEM values will be rounded into an integer value.

This can be accomplished by using the 'gftools fix-hinting' command:

# create virtualenv
python3 -m venv venv
# activate virtualenv
source venv/bin/activate
# install gftools
pip install git+https://www.github.com/googlefonts/tools

[code: bad-flags]

This font lacks caret position values for ligature glyphs on its GDEF table. [code: lacks-caret-pos]

GPOS table lacks kerning info for the following non-ligated sequences:

- f + f

- f + b

- b + f

- f + h

- h + f

- f + i

- i + f

- f + j

- j + f

- f + k

- k + f

- f + l

- l + f

- f + t

- t + b

- h + i

- i + j

- j + k

- k + l

- l + t [code: lacks-kern-info]

Please consider adding a subdirectory called "static/" and including in it static font files. [code: missing]

The DESCRIPTION.en_us.html file in this family has not changed in comparison to the latest font release on the google/fonts github repo. Please consider mentioning note-worthy improvements made to the family recently. [code: description-not-updated]

The stylistic set ss01 lacks a description string on the 'name' table. [code: missing-description]

This font file does not have a 'meta' table. [code: lacks-meta-table]

Familyname seems to hint at "DISPLAY" but METADATA.pb declares it as "['SERIF']". [code: inferred-category]

The '.notdef' glyph should contain a drawing, but it is blank. [code: notdef-is-blank]

This check inspects the glyph outlines and detects the total number of contours in each of them. The expected values are infered from the typical ammounts of contours observed in a large collection of reference font families. The divergences listed below may simply indicate a significantly different design on some of your glyphs. On the other hand, some of these may flag actual bugs in the font such as glyphs mapped to an incorrect codepoint. Please consider reviewing the design and codepoint assignment of these to make sure they are correct.

The following glyphs do not have the recommended number of contours:

- Glyph name: uni00AD	Contours detected: 1	Expected: 0

- Glyph name: aogonek	Contours detected: 3	Expected: 2

- Glyph name: Eogonek	Contours detected: 3	Expected: 1 or 2

- Glyph name: Uogonek	Contours detected: 2	Expected: 1

- Glyph name: uogonek	Contours detected: 2	Expected: 1

- Glyph name: uni01EB	Contours detected: 3	Expected: 2

- Glyph name: uni01F5	Contours detected: 4	Expected: 3

- Glyph name: lira	Contours detected: 2	Expected: 1

- Glyph name: Eogonek	Contours detected: 3	Expected: 1 or 2

- Glyph name: Uogonek	Contours detected: 2	Expected: 1

- Glyph name: aogonek	Contours detected: 3	Expected: 2

- Glyph name: lira	Contours detected: 2	Expected: 1

- Glyph name: uni00AD	Contours detected: 1	Expected: 0

- Glyph name: uogonek	Contours detected: 2	Expected: 1

[code: contour-count]

This font has a 'Soft Hyphen' character. [code: softhyphen]

The following glyphs had components with scaling or rotation or inverted outline direction:

• greaterequal (component less) [code: transformed-components]

The most common width is 423 among a set of 2 math glyphs. The following math glyphs have a different width, though:

Width = 454: plus

Width = 481: equal

Width = 459: logicalnot

Width = 502: plusminus

Width = 466: multiply

Width = 498: divide

Width = 446: minus

Width = 483: approxequal

Width = 442: notequal

Width = 469: lessequal

Width = 470: greaterequal [code: width-outliers]

This font has a digital signature (DSIG table) which is only required - even if only a placeholder - on old programs like MS Office 2013 in order to work properly. The current recommendation is to completely remove the DSIG table. [code: found-DSIG]

The following glyphs have duplicate components which have the same x,y coordinates: * {'glyph': 'Eogonek', 'component': 'E', 'x': 0, 'y': 0} [code: found-duplicates]

No dotted circle glyph present [code: missing-dotted-circle]

The dot of soft dotted characters used in orthographies must disappear in the following strings: j̑

The dot of soft dotted characters should disappear in other cases, for example: j̏ į̏ į̑ ị̏ ị̑

Your font does not cover the following languages that require the soft-dotted feature: Basaa (Latn, 332,940 speakers), Dutch (Latn, 31,709,104 speakers), Belarusian (Cyrl, 10,064,517 speakers), Lithuanian (Latn, 2,357,094 speakers), Ukrainian (Cyrl, 29,273,587 speakers), Aghem (Latn, 38,843 speakers), Igbo (Latn, 27,823,640 speakers), Navajo (Latn, 166,319 speakers). [code: soft-dotted]