Please add a font sample image to the README.md file. You can use something like this:

![font sample](samples/some-sample-image.jpg)

[code: no-sample]

OS/2 VendorID value 'dtf ' 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)


- 0x010A (LATIN CAPITAL LETTER C WITH DOT ABOVE)


- 0x0120 (LATIN CAPITAL LETTER G WITH DOT ABOVE)


- 0x0126 (LATIN CAPITAL LETTER H WITH STROKE)


- 0x0132 (LATIN CAPITAL LIGATURE IJ)


- 0x014A (LATIN CAPITAL LETTER ENG)


- 0x016C (LATIN CAPITAL LETTER U WITH BREVE)


- 0x1E82 (LATIN CAPITAL LETTER W WITH ACUTE)


- 0x0174 (LATIN CAPITAL LETTER W WITH CIRCUMFLEX)


- 0x1E84 (LATIN CAPITAL LETTER W WITH DIAERESIS)


- 0x1E80 (LATIN CAPITAL LETTER W WITH GRAVE)


- 0x0176 (LATIN CAPITAL LETTER Y WITH CIRCUMFLEX)


- 0x1EF2 (LATIN CAPITAL LETTER Y WITH GRAVE)


- 0x010B (LATIN SMALL LETTER C WITH DOT ABOVE)


- 0x0121 (LATIN SMALL LETTER G WITH DOT ABOVE)


- 0x0127 (LATIN SMALL LETTER H WITH STROKE)


- 0x0133 (LATIN SMALL LIGATURE IJ)


- 0x0237 (LATIN SMALL LETTER DOTLESS J)


- 0x014B (LATIN SMALL LETTER ENG)


- 0x016D (LATIN SMALL LETTER U WITH BREVE)


- 0x1E83 (LATIN SMALL LETTER W WITH ACUTE)


- 0x0175 (LATIN SMALL LETTER W WITH CIRCUMFLEX)


- 0x1E85 (LATIN SMALL LETTER W WITH DIAERESIS)


- 0x1E81 (LATIN SMALL LETTER W WITH GRAVE)


- 0x0177 (LATIN SMALL LETTER Y WITH CIRCUMFLEX)


- 0x1EF3 (LATIN SMALL LETTER Y WITH GRAVE)


- 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)


- 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: tifinagh, canadian-aboriginal
• 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+0326 COMBINING COMMA BELOW: not included in any glyphset definition
• 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+2021 DOUBLE DAGGER: not included in any glyphset definition
• U+2030 PER MILLE SIGN: 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+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

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

NAMEID #0 contains symbols that should be replaced by '(c)'. [code: unwanted-chars]

First line in license file is:

"copyright (c) 2014, dunwich type founders (http://dunwichtype.com). rhodium is a trademark of dunwich type founders."

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=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=3, enc=1, 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=3, enc=1, name=13] [code: http-in-description]

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 = 1.3; latest = 1.8.4; Need to re-run with the newer version! [code: old-ttfa]

Bad string at [nameID 0, 'utf_16_be']: 'b'Copyright © 2015 by James Puckett. All rights reserved.'' [code: bad-string]

There are 1 strings containing non-ASCII characters in the ASCII-only NAME table entries. [code: non-ascii-strings]

METADATA.pb subsets are not sorted in alphabetical order: Got ['menu', 'devanagari', 'latin', 'latin-ext'] and expected ['devanagari', 'latin', 'latin-ext', 'menu'] [code: not-sorted]

METADATA.pb font full_name = "Rhodium Libre" does not match post_script_name = "RhodiumLibre-Regular" [code: mismatch]

METADATA.pb: Copyright notices should match a pattern similar to: "Copyright 2020 The Familyname Project Authors (git url)" But instead we have got: "copyright (c) 2014, dunwich type founders (http://dunwichtype.com). rhodium is a trademark of dunwich type founders." [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 © 2015 by James Puckett. All rights reserved." [code: bad-notice-format]

Value of repository_url field is

But font copyright string has: http://dunwichtype.com [code: mismatch]

Regular missing from full name [code: lacks-regular]

Copyright field for this font on METADATA.pb ("Copyright (c) 2014, Dunwich Type Founders (http://dunwichtype.com). Rhodium is a trademark of Dunwich Type Founders.") differs from a copyright notice entry on the name table: "Copyright © 2015 by James Puckett. All rights reserved." [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 + i

- i + f

- f + l

- l + f [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]

OS/2.fsSelection bit 7 (USE_TYPO_METRICS) wasNOT set in the following fonts: ['/Users/simon/others-repos/fonts/ofl/rhodiumlibre/RhodiumLibre-Regular.ttf']. [code: missing-os2-fsselection-bit7]

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

OS/2.usWinAscent value should be equal or greater than 1152, but got 1100 instead [code: ascent]

OS/2 sTypoLineGap (705) and hhea lineGap (0) must be equal. [code: lineGap]

The following glyphs could not be reached by codepoint or substitution rules:

- space.002

[code: unreachable-glyphs]

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: uni0904	Contours detected: 2	Expected: 1

- Glyph name: uni090E	Contours detected: 2	Expected: 1

- Glyph name: uni0910	Contours detected: 2	Expected: 1

- Glyph name: uni0912	Contours detected: 2	Expected: 1

- Glyph name: uni0913	Contours detected: 2	Expected: 1

- Glyph name: uni0914	Contours detected: 2	Expected: 1

- Glyph name: uni091B	Contours detected: 1	Expected: 2

- Glyph name: uni093B	Contours detected: 2	Expected: 1

- Glyph name: uni094A	Contours detected: 2	Expected: 1

- Glyph name: uni094B	Contours detected: 2	Expected: 1

- Glyph name: uni094C	Contours detected: 2	Expected: 1

- Glyph name: uni0967	Contours detected: 2	Expected: 1

- Glyph name: uni0973	Contours detected: 2	Expected: 1

- Glyph name: uni0974	Contours detected: 2	Expected: 1

- Glyph name: uni0977	Contours detected: 2	Expected: 3

- Glyph name: uni25CC	Contours detected: 8	Expected: 16 or 12

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

- Glyph name: uni0904	Contours detected: 2	Expected: 1

- Glyph name: uni090E	Contours detected: 2	Expected: 1

- Glyph name: uni0910	Contours detected: 2	Expected: 1

- Glyph name: uni0912	Contours detected: 2	Expected: 1

- Glyph name: uni0913	Contours detected: 2	Expected: 1

- Glyph name: uni0914	Contours detected: 2	Expected: 1

- Glyph name: uni091B	Contours detected: 1	Expected: 2

- Glyph name: uni093B	Contours detected: 2	Expected: 1

- Glyph name: uni094A	Contours detected: 2	Expected: 1

- Glyph name: uni094B	Contours detected: 2	Expected: 1

- Glyph name: uni094C	Contours detected: 2	Expected: 1

- Glyph name: uni0967	Contours detected: 2	Expected: 1

- Glyph name: uni0973	Contours detected: 2	Expected: 1

- Glyph name: uni0974	Contours detected: 2	Expected: 1

- Glyph name: uni0977	Contours detected: 2	Expected: 3

- Glyph name: uni25CC	Contours detected: 8	Expected: 16 or 12

[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:

• backslash (component slash)
• braceright (component braceleft)
• bracketright (component bracketleft)
• parenright (component parenleft)
• guillemotleft (component guillemotright)
• guilsinglleft (component guilsinglright)
• quotedblleft (component quoteright)
• quotedblleft (component quoteright)
• quoteleft (component quoteright)
• greater (component less)
• greaterequal (component lessequal)
• greater.lf (component less.lf)
• greaterequal.lf (component lessequal.lf)
• uni09480902 (component uni0902)
• uni0953 (component uni0954) [code: transformed-components]

OS/2 sTypoLineGap is not equal to 0. [code: OS/2]

Lcaron is decomposed and therefore could not be checked. Please check manually. [code: decomposed-outline]

dcaron is decomposed and therefore could not be checked. Please check manually. [code: decomposed-outline]

lcaron is decomposed and therefore could not be checked. Please check manually. [code: decomposed-outline]

tcaron is decomposed and therefore could not be checked. Please check manually. [code: decomposed-outline]

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 mark characters could be in the GDEF mark glyph class: uni0957 (U+0957) [code: mark-chars]

The following glyphs could not be attached to the dotted circle glyph:

- uni0326

- uni0901

- uni0902

- uni093A

- uni093C

- uni0941

- uni0942

- uni0943

- uni0944

- uni0945

- uni0946

- uni0947

- uni0948

- uni094D

- uni0951

- uni0952

- uni0953

- uni0954

- uni0956

- uni0962

- uni0963 [code: unattached-dotted-circle-marks]