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Fontbakery Technical Report

If you think a check is flawed or have an idea for a check, please file an issue at https://github.com/fonttools/fontbakery/issues and remember to include a pointer to the repo and branch you're checking.

DEPRECATION WARNING

By late-December 2024, FontBakery version 0.13.0 introduced a new naming scheme for the check-IDs.

Fontbakery detected usage of old IDs and performed an automatic backwards-compatibility translation for you.
This automatic translation will be deprecated in the next major release.

Please start using the new check-IDs as documented at /Lib/fontbakery/legacy_checkids.py

The following legacy check-IDs were detected:
- com.google.fonts/check/outline_alignment_miss
- com.google.fonts/check/outline_short_segments
- com.google.fonts/check/outline_colinear_vectors
- com.google.fonts/check/outline_semi_vertical
- com.google.fonts/check/outline_jaggy_segments
- com.google.fonts/check/fontdata_namecheck
- com.google.fonts/check/ttx_roundtrip
- com.google.fonts/check/version_bump

Summary

💥 ERROR ☠ FATAL 🔥 FAIL ⚠️ WARN ⏩ SKIP ℹ️ INFO ✅ PASS
1 0 2 11 37 9 178
0% 0% 1% 5% 16% 4% 75%

Meaning of check results:

If you get ERRORs, please help us improve the tool by reporting them at our issue tracker.

(but other kinds of bug reports and/or feature requests are also always welcome, of course!)

FontBakery version: 0.13.1

OpenType Specification Checks

⚠️⏩⏩⏩⏩⏩⏩⏩

Font has correct post table version?

Check ID: <FontBakeryCheck:opentype/post_table_version>
⚠️ BriemHand[wght].ttf
  • ⚠️ WARN

    Post table format 3 use has niche use case problems.Please review the check rationale for additional details.

    [code: post-table-version]

Universal Profile Checks

🔥⚠️⚠️⚠️⚠️⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩ℹ️ℹ️

Check if uppercase glyphs are vertically centered.

Check ID: <FontBakeryCheck:caps_vertically_centered>
⚠️ BriemHand[wght].ttf
  • ⚠️ WARN

    Uppercase glyphs are not vertically centered in the em box.

    [code: vertical-metrics-not-centered]

Ensure the font supports case swapping for all its glyphs.

Check ID: <FontBakeryCheck:case_mapping>
🔥 BriemHand[wght].ttf
  • 🔥 FAIL

    The following glyphs lack their case-swapping counterparts:

    Glyph present in the font Missing case-swapping counterpart
    U+021D: LATIN SMALL LETTER YOGH U+021C: LATIN CAPITAL LETTER YOGH
    U+0280: LATIN LETTER SMALL CAPITAL R U+01A6: LATIN LETTER YR
    U+0395: GREEK CAPITAL LETTER EPSILON U+03B5: GREEK SMALL LETTER EPSILON
    U+0396: GREEK CAPITAL LETTER ZETA U+03B6: GREEK SMALL LETTER ZETA
    U+0397: GREEK CAPITAL LETTER ETA U+03B7: GREEK SMALL LETTER ETA
    U+039A: GREEK CAPITAL LETTER KAPPA U+03BA: GREEK SMALL LETTER KAPPA
    U+039D: GREEK CAPITAL LETTER NU U+03BD: GREEK SMALL LETTER NU
    U+03A3: GREEK CAPITAL LETTER SIGMA U+03C3: GREEK SMALL LETTER SIGMA
    U+03A4: GREEK CAPITAL LETTER TAU U+03C4: GREEK SMALL LETTER TAU
    U+03A5: GREEK CAPITAL LETTER UPSILON U+03C5: GREEK SMALL LETTER UPSILON
    U+03BB: GREEK SMALL LETTER LAMDA U+039B: GREEK CAPITAL LETTER LAMDA
    U+03C6: GREEK SMALL LETTER PHI U+03A6: GREEK CAPITAL LETTER PHI
    U+03CA: GREEK SMALL LETTER IOTA WITH DIALYTIKA U+03AA: GREEK CAPITAL LETTER IOTA WITH DIALYTIKA
    U+0443: CYRILLIC SMALL LETTER U U+0423: CYRILLIC CAPITAL LETTER U
    U+0481: CYRILLIC SMALL LETTER KOPPA U+0480: CYRILLIC CAPITAL LETTER KOPPA
    [code: missing-case-counterparts]

Detect any interpolation issues in the font.

Check ID: <FontBakeryCheck:interpolation_issues>
⚠️ BriemHand[wght].ttf
  • ⚠️ WARN

    Interpolation issues were found in the font:

    - Contour 0 point 22 in glyph 'glyph00772' has a kink between location wght=100 and location wght=900
    
    - Contour 0 point 0 in glyph 'glyph00848' has a kink between location wght=100 and location wght=900
    
    - Contour 0 start point differs in glyph 'glyph00862' between location wght=100 and location wght=900
    
    - Contour 0 start point differs in glyph 'glyph00846' between location wght=100 and location wght=900
    
    - Contour 0 in glyph 'glyph00850': becomes underweight between wght=100 and wght=900.
    
    - Contour 0 start point differs in glyph 'glyph00798' between location wght=100 and location wght=900
    
    - Contour 0 in glyph 'glyph00792': becomes underweight between wght=100 and wght=900.
    
    - Contour 0 point 0 in glyph 'glyph00856' has a kink between location wght=100 and location wght=900
    
    - Contour 1 start point differs in glyph 'section' between location wght=100 and location wght=900
    
    [code: interpolation-issues]

Check math signs have the same width.

Check ID: <FontBakeryCheck:math_signs_width>
⚠️ BriemHand[wght].ttf
  • ⚠️ WARN

    The most common width is 550 among a set of 2 math glyphs. The following math glyphs have a different width, though:

    Width = 540: lessequal, less

    Width = 530: greaterequal, greater

    Width = 489: logicalnot

    Width = 459: plusminus

    Width = 553: multiply

    Width = 487: divide

    Width = 537: minus

    Width = 554: approxequal

    Width = 570: notequal

    [code: width-outliers]

Check there are no overlapping path segments

Check ID: <FontBakeryCheck:overlapping_path_segments>
⚠️ BriemHand[wght].ttf
  • ⚠️ WARN

    The following glyphs have overlapping path segments:

    * glyph00845: L<<-102.0,798.0>--<-104.0,796.0>> has the same coordinates as a previous segment.
    
    * glyph00855: L<<-102.0,798.0>--<-104.0,796.0>> has the same coordinates as a previous segment.
    
    [code: overlapping-path-segments]

Article Checks

⚠️

Validate size, and resolution of article images, and ensure article page has minimum length and includes visual assets.

Check ID: <FontBakeryCheck:googlefonts/article/images>
⚠️ BriemHand[wght].ttf
  • ⚠️ WARN

    Family metadata at /Users/simon/others-repos/fonts//ofl/briemhand does not have an article.

    [code: lacks-article]

Metadata Checks

⚠️⚠️⏩⏩⏩ℹ️

METADATA.pb: Designers are listed correctly on the Google Fonts catalog?

Check ID: <FontBakeryCheck:googlefonts/metadata/designer_profiles>
⚠️ BriemHand[wght].ttf
  • ⚠️ WARN

    It seems that Gunnlaugur SE Briem is still not listed on the designers catalog. Please submit a photo and a link to a webpage where people can learn more about the work of this designer/typefoundry.

    [code: profile-not-found]

Check for codepoints not covered by METADATA subsets.

Check ID: <FontBakeryCheck:googlefonts/metadata/unreachable_subsetting>
⚠️ BriemHand[wght].ttf
  • ⚠️ WARN

    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+02CD MODIFIER LETTER LOW MACRON: try adding lisu
    • U+02D8 BREVE: try adding one of: yi, canadian-aboriginal
    • U+02D9 DOT ABOVE: try adding one of: yi, canadian-aboriginal
    • U+02DB OGONEK: try adding one of: yi, canadian-aboriginal
    • U+0302 COMBINING CIRCUMFLEX ACCENT: try adding one of: cherokee, coptic, tifinagh, math
    • U+0306 COMBINING BREVE: try adding one of: tifinagh, old-permic
    • U+0307 COMBINING DOT ABOVE: try adding one of: todhri, malayalam, canadian-aboriginal, hebrew, tai-le, old-permic, math, duployan, syriac, tifinagh, coptic
    • U+030A COMBINING RING ABOVE: try adding one of: duployan, syriac
    • U+030B COMBINING DOUBLE ACUTE ACCENT: try adding one of: cherokee, osage
    • U+030C COMBINING CARON: try adding one of: tai-le, cherokee
    • U+030D COMBINING VERTICAL LINE ABOVE: try adding sunuwar
    • U+030F COMBINING DOUBLE GRAVE ACCENT: not included in any glyphset definition
    • U+0310 COMBINING CANDRABINDU: try adding one of: math, sunuwar
    • U+0311 COMBINING INVERTED BREVE: try adding one of: todhri, coptic
    • U+0312 COMBINING TURNED COMMA ABOVE: try adding math
    • U+0313 COMBINING COMMA ABOVE: try adding one of: todhri, old-permic
    • U+0315 COMBINING COMMA ABOVE RIGHT: try adding math
    • U+031B COMBINING HORN: not included in any glyphset definition
    • U+0320 COMBINING MINUS SIGN BELOW: try adding syriac
    • U+0324 COMBINING DIAERESIS BELOW: try adding one of: duployan, cherokee, syriac
    • U+0325 COMBINING RING BELOW: try adding syriac
    • U+0326 COMBINING COMMA BELOW: try adding math
    • U+0327 COMBINING CEDILLA: try adding math
    • U+0328 COMBINING OGONEK: not included in any glyphset definition
    • U+032D COMBINING CIRCUMFLEX ACCENT BELOW: try adding one of: sunuwar, syriac
    • U+032E COMBINING BREVE BELOW: try adding syriac
    • U+032F COMBINING INVERTED BREVE BELOW: try adding math
    • U+0330 COMBINING TILDE BELOW: try adding one of: cherokee, math, syriac
    • U+0331 COMBINING MACRON BELOW: try adding one of: sunuwar, gothic, caucasian-albanian, syriac, tifinagh, cherokee, thai
    • U+0332 COMBINING LOW LINE: try adding math
    • U+0334 COMBINING TILDE OVERLAY: not included in any glyphset definition
    • U+0335 COMBINING SHORT STROKE OVERLAY: not included in any glyphset definition
    • U+0336 COMBINING LONG STROKE OVERLAY: not included in any glyphset definition
    • U+0338 COMBINING LONG SOLIDUS OVERLAY: try adding math
    • U+0358 COMBINING DOT ABOVE RIGHT: try adding osage
    • U+035F COMBINING DOUBLE MACRON BELOW: not included in any glyphset definition
    • U+0361 COMBINING DOUBLE INVERTED BREVE: try adding coptic
    • U+0E3F THAI CURRENCY SYMBOL BAHT: try adding thai
    • U+1DC4 COMBINING MACRON-ACUTE: not included in any glyphset definition
    • U+1DC5 COMBINING GRAVE-MACRON: not included in any glyphset definition
    • U+1DC6 COMBINING MACRON-GRAVE: not included in any glyphset definition
    • U+1DC7 COMBINING ACUTE-MACRON: not included in any glyphset definition
    • U+1DC8 COMBINING GRAVE-ACUTE-GRAVE: not included in any glyphset definition
    • U+1DCA COMBINING LATIN SMALL LETTER R BELOW: not included in any glyphset definition
    • U+2000 EN QUAD: try adding symbols2
    • U+2001 EM QUAD: try adding symbols2
    • U+2003 EM SPACE: try adding nushu
    • U+2004 THREE-PER-EM SPACE: try adding symbols2
    • U+2005 FOUR-PER-EM SPACE: try adding symbols2
    • U+2006 SIX-PER-EM SPACE: try adding symbols2
    • U+2007 FIGURE SPACE: try adding symbols2
    • U+2008 PUNCTUATION SPACE: try adding symbols2
    • U+200A HAIR SPACE: try adding symbols2
    • U+200C ZERO WIDTH NON-JOINER: try adding one of: sundanese, mahajani, kannada, kaithi, tai-viet, mongolian, buhid, hanunoo, sinhala, sogdian, tamil, lepcha, hanifi-rohingya, modi, newa, arabic, tagbanwa, buginese, balinese, hatran, hebrew, khojki, sharada, dogra, chakma, warang-citi, mandaic, rejang, telugu, tirhuta, kayah-li, siddham, syloti-nagri, yi, new-tai-lue, bhaiksuki, tai-tham, tagalog, tibetan, thai, malayalam, thaana, nko, grantha, saurashtra, khudawadi, pahawh-hmong, zanabazar-square, batak, takri, kharoshthi, tifinagh, duployan, javanese, khmer, masaram-gondi, lao, meetei-mayek, devanagari, gurmukhi, psalter-pahlavi, oriya, gujarati, tai-le, avestan, brahmi, cham, syriac, limbu, manichaean, gunjala-gondi, bengali, phags-pa, myanmar
    • U+200D ZERO WIDTH JOINER: try adding one of: sundanese, mahajani, kannada, kaithi, tai-viet, mongolian, buhid, hanunoo, sinhala, sogdian, tamil, lepcha, hanifi-rohingya, modi, newa, arabic, tagbanwa, buginese, balinese, hebrew, khojki, sharada, dogra, chakma, warang-citi, mandaic, rejang, telugu, tirhuta, old-hungarian, kayah-li, siddham, syloti-nagri, yi, new-tai-lue, bhaiksuki, tai-tham, tagalog, tibetan, thai, malayalam, thaana, nko, grantha, saurashtra, khudawadi, pahawh-hmong, zanabazar-square, batak, takri, kharoshthi, tifinagh, duployan, javanese, khmer, masaram-gondi, lao, meetei-mayek, devanagari, gurmukhi, psalter-pahlavi, oriya, gujarati, tai-le, avestan, brahmi, cham, syriac, limbu, manichaean, gunjala-gondi, bengali, phags-pa, myanmar
    • U+2011 NON-BREAKING HYPHEN: try adding one of: yi, arabic, syloti-nagri
    • U+2016 DOUBLE VERTICAL LINE: try adding math
    • U+2021 DOUBLE DAGGER: try adding adlam
    • U+202F NARROW NO-BREAK SPACE: try adding one of: yi, mongolian, phags-pa
    • U+2030 PER MILLE SIGN: try adding adlam
    • U+203C DOUBLE EXCLAMATION MARK: try adding math
    • U+2042 ASTERISM: not included in any glyphset definition
    • U+204A TIRONIAN SIGN ET: not included in any glyphset definition
    • U+205F MEDIUM MATHEMATICAL SPACE: try adding math
    • U+2070 SUPERSCRIPT ZERO: try adding math
    • U+2071 SUPERSCRIPT LATIN SMALL LETTER I: try adding math
    • U+2074 SUPERSCRIPT FOUR: try adding math
    • U+2075 SUPERSCRIPT FIVE: try adding math
    • U+2076 SUPERSCRIPT SIX: try adding math
    • U+2077 SUPERSCRIPT SEVEN: try adding math
    • U+2078 SUPERSCRIPT EIGHT: try adding math
    • U+2079 SUPERSCRIPT NINE: try adding math
    • U+207F SUPERSCRIPT LATIN SMALL LETTER N: try adding math
    • U+2080 SUBSCRIPT ZERO: try adding math
    • U+2081 SUBSCRIPT ONE: try adding math
    • U+2082 SUBSCRIPT TWO: try adding math
    • U+2083 SUBSCRIPT THREE: try adding math
    • U+2084 SUBSCRIPT FOUR: try adding math
    • U+2085 SUBSCRIPT FIVE: try adding math
    • U+2086 SUBSCRIPT SIX: try adding math
    • U+2087 SUBSCRIPT SEVEN: try adding math
    • U+2088 SUBSCRIPT EIGHT: try adding math
    • U+2089 SUBSCRIPT NINE: try adding math
    • U+2126 OHM SIGN: try adding math
    • U+212E ESTIMATED SYMBOL: try adding math
    • U+2144 TURNED SANS-SERIF CAPITAL Y: try adding math
    • U+2150 VULGAR FRACTION ONE SEVENTH: try adding symbols
    • U+2151 VULGAR FRACTION ONE NINTH: try adding symbols
    • U+2152 VULGAR FRACTION ONE TENTH: try adding symbols
    • U+2153 VULGAR FRACTION ONE THIRD: try adding symbols
    • U+2154 VULGAR FRACTION TWO THIRDS: try adding symbols
    • U+2155 VULGAR FRACTION ONE FIFTH: try adding symbols
    • U+2156 VULGAR FRACTION TWO FIFTHS: try adding symbols
    • U+2158 VULGAR FRACTION FOUR FIFTHS: try adding symbols
    • U+2159 VULGAR FRACTION ONE SIXTH: try adding symbols
    • U+215A VULGAR FRACTION FIVE SIXTHS: try adding symbols
    • U+215B VULGAR FRACTION ONE EIGHTH: try adding symbols
    • U+215C VULGAR FRACTION THREE EIGHTHS: try adding symbols
    • U+215D VULGAR FRACTION FIVE EIGHTHS: try adding symbols
    • U+215E VULGAR FRACTION SEVEN EIGHTHS: try adding symbols
    • U+2183 ROMAN NUMERAL REVERSED ONE HUNDRED: try adding symbols
    • U+2184 LATIN SMALL LETTER REVERSED C: not included in any glyphset definition
    • U+2190 LEFTWARDS ARROW: try adding one of: symbols, math
    • U+2192 RIGHTWARDS ARROW: try adding one of: symbols, math
    • U+2194 LEFT RIGHT ARROW: try adding one of: symbols, math
    • U+2195 UP DOWN ARROW: try adding one of: symbols, math
    • U+2196 NORTH WEST ARROW: try adding one of: symbols, math
    • U+2197 NORTH EAST ARROW: try adding one of: symbols, math
    • U+2198 SOUTH EAST ARROW: try adding one of: symbols, math
    • U+2199 SOUTH WEST ARROW: try adding one of: symbols, math
    • U+2202 PARTIAL DIFFERENTIAL: try adding math
    • U+2205 EMPTY SET: try adding math
    • U+2206 INCREMENT: try adding math
    • U+220F N-ARY PRODUCT: try adding math
    • U+2211 N-ARY SUMMATION: try adding math
    • U+221A SQUARE ROOT: try adding math
    • U+221E INFINITY: try adding math
    • U+222B INTEGRAL: try adding math
    • U+2248 ALMOST EQUAL TO: try adding math
    • U+2260 NOT EQUAL TO: try adding math
    • U+2264 LESS-THAN OR EQUAL TO: try adding math
    • U+2265 GREATER-THAN OR EQUAL TO: try adding math
    • U+24B6 CIRCLED LATIN CAPITAL LETTER A: try adding symbols
    • U+24D0 CIRCLED LATIN SMALL LETTER A: try adding symbols
    • U+25CA LOZENGE: try adding one of: symbols, math
    • U+25CC DOTTED CIRCLE: try adding one of: bassa-vah, elbasan, hanunoo, tagbanwa, buginese, khojki, telugu, coptic, nko, khmer, oriya, caucasian-albanian, syriac, manichaean, gunjala-gondi, sundanese, tai-viet, kannada, kaithi, wancho, hanifi-rohingya, balinese, hebrew, dogra, chakma, mende-kikakui, mandaic, yi, bhaiksuki, malayalam, thaana, canadian-aboriginal, grantha, saurashtra, pahawh-hmong, tifinagh, cham, brahmi, old-permic, tai-tham, bengali, mahajani, sinhala, tamil, lepcha, osage, siddham, syloti-nagri, new-tai-lue, marchen, thai, khudawadi, zanabazar-square, takri, duployan, miao, masaram-gondi, lao, math, meetei-mayek, symbols, music, ahom, limbu, phags-pa, mongolian, buhid, sogdian, modi, newa, sharada, warang-citi, rejang, tirhuta, kayah-li, soyombo, tagalog, tibetan, armenian, batak, kharoshthi, javanese, devanagari, gurmukhi, adlam, gujarati, tai-le, psalter-pahlavi, myanmar
    • U+A717 MODIFIER LETTER DOT VERTICAL BAR: not included in any glyphset definition
    • U+A718 MODIFIER LETTER DOT SLASH: not included in any glyphset definition
    • U+A719 MODIFIER LETTER DOT HORIZONTAL BAR: not included in any glyphset definition
    • U+A71A MODIFIER LETTER LOWER RIGHT CORNER ANGLE: not included in any glyphset definition
    • U+AB53 LATIN SMALL LETTER CHI: not included in any glyphset definition
    • U+E03A : not included in any glyphset definition
    • U+E03B : not included in any glyphset definition
    • U+E03E : not included in any glyphset definition
    • U+E03F : not included in any glyphset definition
    • U+E040 : not included in any glyphset definition
    • U+F8FF : 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

    Or you can add the above codepoints to one of the subsets supported by the font: cyrillic-ext, greek-ext, latin, latin-ext, menu, vietnamese

    [code: unreachable-subsetting]

Glyphset Checks

💥

Shapes languages in all GF glyphsets.

Check ID: <FontBakeryCheck:googlefonts/glyphsets/shape_languages>
💥 BriemHand[wght].ttf
  • 💥 ERROR

    Failed with ModuleNotFoundError: No module named 'shaperglot.checker'

      File "/Users/simon/work/gf-dashboard/venv/lib/python3.13/site-packages/fontbakery/checkrunner.py", line 222, in _run_check
        subresults = list(subresults)
      File "/Users/simon/work/gf-dashboard/venv/lib/python3.13/site-packages/fontbakery/checks/vendorspecific/googlefonts/glyphsets/shape_languages.py", line 19, in check_glyphsets_shape_languages
        from shaperglot.checker import Checker
    
    
    [code: failed-check]

Description Checks

🔥⚠️ℹ️ℹ️

DESCRIPTION.en_us.html should end in a linebreak.

Check ID: <FontBakeryCheck:googlefonts/description/eof_linebreak>
⚠️ METADATA.pb
  • ⚠️ WARN

    The last characther on DESCRIPTION.en_us.html is not a line-break. Please add it.

    [code: missing-eof-linebreak]

DESCRIPTION.en_us.html must have more than 200 bytes.

Check ID: <FontBakeryCheck:googlefonts/description/min_length>
🔥 METADATA.pb
  • 🔥 FAIL

    DESCRIPTION.en_us.html must have size larger than 200 bytes.

    [code: too-short]

Outline Checks

⚠️⏩⏩⏩⏩

Check the direction of the outermost contour in each glyph

Check ID: <FontBakeryCheck:outline_direction>
⚠️ BriemHand[wght].ttf
  • ⚠️ WARN

    The following glyphs have a counter-clockwise outer contour:

    * glyph00845 has a counter-clockwise outer contour
    
    * glyph00855 has a counter-clockwise outer contour
    
    [code: ccw-outer-contour]

Font File Checks

⚠️⏩⏩⏩⏩⏩ℹ️ℹ️ℹ️

Ensure fonts have ScriptLangTags declared on the 'meta' table.

Check ID: <FontBakeryCheck:googlefonts/meta/script_lang_tags>
⚠️ BriemHand[wght].ttf
  • ⚠️ WARN

    This font file does not have a 'meta' table.

    [code: lacks-meta-table]