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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_semi_vertical
- com.google.fonts/check/outline_jaggy_segments
- com.google.fonts/check/version_bump
- com.google.fonts/check/outline_colinear_vectors
- com.google.fonts/check/fontdata_namecheck
- com.google.fonts/check/outline_short_segments
- com.google.fonts/check/ttx_roundtrip
- com.google.fonts/check/outline_alignment_miss

Summary

💥 ERROR ☠ FATAL 🔥 FAIL ⚠️ WARN ⏩ SKIP ℹ️ INFO ✅ PASS
2 0 4 15 43 8 166
1% 0% 2% 6% 18% 3% 70%

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

🔥⚠️⏩⏩⏩⏩⏩⏩⏩⏩

Axes and named instances fall within correct ranges?

Check ID: <FontBakeryCheck:opentype/fvar/regular_coords_correct>
⚠️ HedvigLettersSerif[opsz].ttf
  • ⚠️ WARN

    Regular instance has opsz coordinate of 24.0, expected between 10 and 16

    [code: opsz]

Validates subfamilyNameID and postScriptNameID for the default instance record

Check ID: <FontBakeryCheck:opentype/varfont/valid_default_instance_nameids>
🔥 HedvigLettersSerif[opsz].ttf
  • 🔥 FAIL

    'Regular' instance has the same coordinates as the default instance; its subfamily name should be '24pt Regular'.

    Note: It is alternatively possible that Name ID 17 is incorrect, and should be set to the default instance subfamily name, 'Regular', rather than ''24pt Regular''. If the default instance is 'Regular', NameID 17 is probably the problem.

    [code: invalid-default-instance-subfamily-name]

Universal Profile Checks

⚠️⚠️⚠️⚠️⚠️⚠️⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩ℹ️ℹ️

Check accent of Lcaron, dcaron, lcaron, tcaron

Check ID: <FontBakeryCheck:alt_caron>
⚠️ HedvigLettersSerif[opsz].ttf
  • ⚠️ WARN

    Lcaron is decomposed and therefore could not be checked. Please check manually.

    [code: decomposed-outline]
  • ⚠️ WARN

    dcaron is decomposed and therefore could not be checked. Please check manually.

    [code: decomposed-outline]
  • ⚠️ WARN

    lcaron is decomposed and therefore could not be checked. Please check manually.

    [code: decomposed-outline]
  • ⚠️ WARN

    tcaron is decomposed and therefore could not be checked. Please check manually.

    [code: decomposed-outline]
  • ✅ PASS

    Looks good!

Detect any interpolation issues in the font.

Check ID: <FontBakeryCheck:interpolation_issues>
⚠️ HedvigLettersSerif[opsz].ttf
  • ⚠️ WARN

    Interpolation issues were found in the font:

    - Contour order differs in glyph 'f_f': [0, 1] in opsz=24, [1, 0] in opsz=12.
    
    [code: interpolation-issues]

Are there caret positions declared for every ligature?

Check ID: <FontBakeryCheck:ligature_carets>
⚠️ HedvigLettersSerif[opsz].ttf
  • ⚠️ WARN

    This font lacks caret positioning values for these ligature glyphs: - arrowleft

    - arrowright
    
    [code: incomplete-caret-pos-data]

Ensure variable fonts include an avar table.

Check ID: <FontBakeryCheck:mandatory_avar_table>
⚠️ HedvigLettersSerif[opsz].ttf
  • ⚠️ WARN

    This variable font does not have an avar table. Most variable fonts should include an avar table to correctly define axes progression rates.

    [code: missing-avar]

Combined length of family and style must not exceed 32 characters.

Check ID: <FontBakeryCheck:name/family_and_style_max_length>
⚠️ HedvigLettersSerif[opsz].ttf
  • ⚠️ WARN

    Name ID 6 'HedvigLettersSerif-24ptRegular' exceeds 27 characters. This has been found to cause problems with PostScript printers, especially on Mac platforms.

    [code: nameid6-too-long]

Check there are no overlapping path segments

Check ID: <FontBakeryCheck:overlapping_path_segments>
⚠️ HedvigLettersSerif[opsz].ttf
  • ⚠️ WARN

    The following glyphs have overlapping path segments:

    * parenleft (U+0028): L<<37.0,305.0>--<127.0,305.0>> has the same coordinates as a previous segment.
    
    * parenright (U+0029): L<<163.0,305.0>--<253.0,305.0>> 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>
⚠️ HedvigLettersSerif[opsz].ttf
  • ⚠️ WARN

    Family metadata at /Users/simon/others-repos/fonts//ofl/hedviglettersserif 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>
⚠️ HedvigLettersSerif[opsz].ttf
  • ⚠️ WARN

    It seems that Alexander Örn 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>
⚠️ HedvigLettersSerif[opsz].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+02D8 BREVE: try adding one of: canadian-aboriginal, yi
    • U+02D9 DOT ABOVE: try adding one of: canadian-aboriginal, yi
    • U+02DB OGONEK: try adding one of: canadian-aboriginal, yi
    • U+0306 COMBINING BREVE: try adding one of: old-permic, tifinagh
    • U+030A COMBINING RING ABOVE: try adding one of: duployan, syriac
    • U+030B COMBINING DOUBLE ACUTE ACCENT: try adding one of: osage, cherokee
    • U+030C COMBINING CARON: try adding one of: cherokee, tai-le
    • U+0328 COMBINING OGONEK: not included in any glyphset definition
    • U+2021 DOUBLE DAGGER: try adding adlam
    • U+2030 PER MILLE SIGN: try adding adlam

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

    [code: unreachable-subsetting]

Glyphset Checks

💥

Shapes languages in all GF glyphsets.

Check ID: <FontBakeryCheck:googlefonts/glyphsets/shape_languages>
💥 HedvigLettersSerif[opsz].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

🔥⚠️⏩⏩⏩ℹ️

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]

Licensing Checks

⚠️⏩

Check copyright namerecords match license file.

Check ID: <FontBakeryCheck:googlefonts/name/license>
⚠️ HedvigLettersSerif[opsz].ttf

Shaping Checks

💥⚠️⏩⏩⏩

Ensure dotted circle glyph is present and can attach marks.

Check ID: <FontBakeryCheck:dotted_circle>
⚠️ HedvigLettersSerif[opsz].ttf
  • ⚠️ WARN

    No dotted circle glyph present

    [code: missing-dotted-circle]

Ensure soft_dotted characters lose their dot when combined with marks that replace the dot.

Check ID: <FontBakeryCheck:soft_dotted>
💥 HedvigLettersSerif[opsz].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/soft_dotted.py", line 144, in check_soft_dotted
        from shaperglot.checker import Checker
    
    
    [code: failed-check]

Outline Checks

⚠️⏩⏩⏩⏩

Check the direction of the outermost contour in each glyph

Check ID: <FontBakeryCheck:outline_direction>
⚠️ HedvigLettersSerif[opsz].ttf
  • ⚠️ WARN

    The following glyphs have a counter-clockwise outer contour:

    * uni24BD.sups has a counter-clockwise outer contour
    
    [code: ccw-outer-contour]

Font File Checks

🔥🔥⚠️⏩⏩⏩⏩⏩ℹ️ℹ️ℹ️

Check font names are correct

Check ID: <FontBakeryCheck:googlefonts/font_names>
🔥 HedvigLettersSerif[opsz].ttf
  • 🔥 FAIL

    Font names are incorrect:

    nameID current expected
    Family Name Hedvig Letters Serif 24pt Hedvig Letters Serif
    Subfamily Name Regular Regular
    Full Name Hedvig Letters Serif 24pt Regular Hedvig Letters Serif Regular
    Postscript Name HedvigLettersSerif-24ptRegular HedvigLettersSerif-Regular
    Typographic Family Name Hedvig Letters Serif N/A
    Typographic Subfamily Name 24pt Regular N/A
    [code: bad-names]

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

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

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

    [code: lacks-meta-table]

Check if the vertical metrics of a family are similar to the same family hosted on Google Fonts.

Check ID: <FontBakeryCheck:googlefonts/vertical_metrics_regressions>
🔥 HedvigLettersSerif[opsz].ttf
  • 🔥 FAIL

    Could not identify a local Regular style font

    [code: couldnt-find-local-regular]