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Fontspector 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/fontspector/issues and remember to include a pointer to the repo and branch you're checking.

Summary

🔥 FAIL⚠️ WARNℹ️ INFO✅ PASS⏩ SKIP
9 22 8 113 57
4% 11% 4% 54% 27%

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!)

Fontspector version: 1.8.0

Opentype Specification Checks

Check that OS/2 fsSelection WWS bit is set correctly.

Check ID: opentype/fsselection_wws
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

    OS/2 fsSelection WWS bit is not set, and the font does not have name IDs 21/22 (WWS Family/Subfamily). If the font's naming is WWS-conformant, the WWS bit should be set.

    [code: no-wws-without-wws-names]

Check mark characters are in GDEF mark glyph class.

Check ID: opentype/GDEF_mark_chars
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

    The following mark characters should be in the GDEF mark glyph class:

    • U+0DD3 (uni3539)
    [code: mark-chars]

Universal Profile Checks

Checking OS/2 usWinAscent & usWinDescent

Check ID: family/win_ascent_and_descent
🔥 variable-ttf
  • 🔥 FAIL

    OS/2.usWinDescent value should be equal or greater than 246, but got 118 instead.

    [code: descent]

Check accent of Lcaron, dcaron, lcaron, tcaron

Check ID: alt_caron
⚠️ NotoTraditionalNushu[wght].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]

Ensure the font supports case swapping for all its glyphs.

Check ID: case_mapping
🔥 NotoTraditionalNushu[wght].ttf
  • 🔥 FAIL

    Missing case-swapping counterpart for U+1E04

    [code: missing-case-counterparts]

Any CJK font should contain at least a minimal set of 150 CJK characters.

Check ID: cjk_not_enough_glyphs
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

    There are only 25 CJK glyphs when there needs to be at least 150 in order to support the smallest CJK writing system, Kana. The following CJK glyphs were found:

    • 12207
    • 13509
    • 20070
    • 12197
    • 38754
    • 27704
    • 4491
    • 11994
    • 12069
    • 38889
    • 36825
    • 13493
    • 39029
    • 22899
    • 20961
    • 21481
    • 4352
    • 26159
    • 35797
    • 27979
    • 20154
    • 12040
    • 63977
    • 37324
    • 13505 Please check that these glyphs have the correct unicodes.
    [code: cjk-not-enough-glyphs]

Check if each glyph has the recommended amount of contours.

Check ID: contour_count
🔥 NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

    This check inspects the glyph outlines and detects the total number of contours in each of them. The expected values are inferred from the typical amounts 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:
    • uni7532 (U+1D6C): found 5, expected one of: [2, 3]
    • uni7684 (U+1E04): found 5, expected one of: [3, 4, 6]
    [code: contour-count]
  • 🔥 FAIL

    The following glyphs have no contours even though they were expected to have some:

    • hyphen (U+002D): found 0, expected one of: [1]
    [code: no-contour]

Checking Vertical Metric linegaps.

Check ID: linegaps
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

    OS/2 sTypoLineGap is not equal to 0.

    [code: OS/2]

Ensure variable fonts include an avar table.

Check ID: mandatory_avar_table
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

    The font does not include an avar table. If the progression rates of axes is linear and no user-mapping is expected, this is fine, and this check can be ignored or excluded.

    [code: missing-avar]

Checking OS/2 Metrics match hhea Metrics.

Check ID: os2_metrics_match_hhea
🔥 NotoTraditionalNushu[wght].ttf
  • 🔥 FAIL

    OS/2 sTypoAscender (860) and hhea ascent (1055) must be equal.

    [code: ascender]
  • 🔥 FAIL

    OS/2 sTypoLineGap (90) and hhea lineGap (0) must be equal.

    [code: lineGap]

Ensure indic fonts have the Indian Rupee Sign glyph.

Check ID: rupee
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

    Font is missing the Indian Rupee Sign glyph. Please add a glyph for Indian Rupee Sign (₹) at codepoint U+20B9.

    [code: missing-rupee]

Checking that the typoAscender exceeds the yMax of the /Agrave.

Check ID: typoascender_exceeds_Agrave
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

    OS/2.sTypoAscender value should be greater than 948, but got 860 instead

    [code: typoAscender]

Check font contains no unreachable glyphs

Check ID: unreachable_glyphs
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

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

    • uni4494.locl
    • uni3002.locl
    • u1B2B3.001
    [code: unreachable-glyphs]

Metadata Checks

Check for codepoints not covered by METADATA subsets.

Check ID: googlefonts/metadata/unreachable_subsetting
⚠️ variable-ttf
  • ⚠️ WARN

    fonts/NotoTraditionalNushu/googlefonts/variable-ttf/NotoTraditionalNushu[wght].ttf: 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: yi, canadian-aboriginal
    • U+02D9 DOT ABOVE: try adding one of: canadian-aboriginal, yi
    • U+02DB OGONEK: try adding one of: yi, canadian-aboriginal
    • U+0302 COMBINING CIRCUMFLEX ACCENT: try adding one of: cherokee, tifinagh, coptic, math
    • U+0306 COMBINING BREVE: try adding one of: old-permic, tifinagh
    • U+0307 COMBINING DOT ABOVE: try adding one of: syriac, canadian-aboriginal, malayalam, coptic, hebrew, duployan, tifinagh, old-permic, tai-le, math, todhri
    • 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: cherokee, tai-le
    • U+0326 COMBINING COMMA BELOW: try adding math
    • U+0327 COMBINING CEDILLA: try adding math
    • U+0DD3 SINHALA VOWEL SIGN DIGA IS-PILLA: try adding sinhala
    • U+1BE0 BATAK LETTER NYA: try adding batak
    • U+4E66 CJK UNIFIED IDEOGRAPH-4E66: try adding chinese-simplified
    • U+4EBA CJK UNIFIED IDEOGRAPH-4EBA: try adding one of: chinese-traditional, japanese, chinese-simplified, chinese-hongkong
    • U+51E1 CJK UNIFIED IDEOGRAPH-51E1: try adding one of: chinese-hongkong, chinese-traditional, japanese, chinese-simplified
    • U+53E9 CJK UNIFIED IDEOGRAPH-53E9: try adding one of: chinese-simplified, chinese-traditional, chinese-hongkong, japanese
    • U+5973 CJK UNIFIED IDEOGRAPH-5973: try adding one of: chinese-simplified, chinese-traditional, chinese-hongkong, japanese
    • U+662F CJK UNIFIED IDEOGRAPH-662F: try adding one of: japanese, chinese-simplified, chinese-traditional, chinese-hongkong
    • U+6C38 CJK UNIFIED IDEOGRAPH-6C38: try adding one of: japanese, chinese-hongkong, chinese-simplified, chinese-traditional
    • U+6D4B CJK UNIFIED IDEOGRAPH-6D4B: try adding chinese-simplified
    • U+8BD5 CJK UNIFIED IDEOGRAPH-8BD5: try adding chinese-simplified
    • U+8FD9 CJK UNIFIED IDEOGRAPH-8FD9: try adding chinese-simplified
    • U+91CC CJK UNIFIED IDEOGRAPH-91CC: try adding one of: chinese-hongkong, chinese-simplified, chinese-traditional, japanese
    • U+9762 CJK UNIFIED IDEOGRAPH-9762: try adding one of: chinese-simplified, japanese, chinese-hongkong, chinese-traditional
    • U+97E9 CJK UNIFIED IDEOGRAPH-97E9: try adding chinese-simplified
    • U+9875 CJK UNIFIED IDEOGRAPH-9875: try adding chinese-simplified
    • U+FF61 HALFWIDTH IDEOGRAPHIC FULL STOP: try adding yi

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

    [code: unreachable-subsetting]

Glyphset Checks

Shapes languages in all GF glyphsets.

Check ID: googlefonts/glyphsets/shape_languages
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

    Warning language shaping:

    Message Languages
    Auxiliary orthography codepoints: * nl_Latn (Dutch)
    The following auxiliary characters are missing from the font: IJ
    The following auxiliary characters are missing from the font: ij
    Auxiliary orthography codepoints: * ro_Latn (Romanian)
    The following auxiliary characters are missing from the font: Ţ
    The following auxiliary characters are missing from the font: ţ
    Auxiliary orthography codepoints: * fi_Latn (Finnish)
    The following auxiliary characters are missing from the font: Ǧ
    The following auxiliary characters are missing from the font: Ǥ
    The following auxiliary characters are missing from the font: Ȟ
    The following auxiliary characters are missing from the font: Ǩ
    The following auxiliary characters are missing from the font: Ŋ
    The following auxiliary characters are missing from the font: Ŝ
    The following auxiliary characters are missing from the font: Ţ
    The following auxiliary characters are missing from the font: Ŧ
    The following auxiliary characters are missing from the font: Ʒ
    The following auxiliary characters are missing from the font: Ǯ
    The following auxiliary characters are missing from the font: ǧ
    The following auxiliary characters are missing from the font: ǥ
    The following auxiliary characters are missing from the font: ȟ
    The following auxiliary characters are missing from the font: ǩ
    The following auxiliary characters are missing from the font: ŋ
    The following auxiliary characters are missing from the font: ŝ
    The following auxiliary characters are missing from the font: ţ
    The following auxiliary characters are missing from the font: ŧ
    The following auxiliary characters are missing from the font: ʒ
    The following auxiliary characters are missing from the font: ǯ
    Auxiliary orthography codepoints: * ca_Latn (Catalan)
    The following auxiliary characters are missing from the font: Ĕ
    The following auxiliary characters are missing from the font: Ĭ
    The following auxiliary characters are missing from the font: Ŀ
    The following auxiliary characters are missing from the font: Ŏ
    The following auxiliary characters are missing from the font: Ō
    The following auxiliary characters are missing from the font: Ŭ
    The following auxiliary characters are missing from the font: ĕ
    The following auxiliary characters are missing from the font: ĭ
    The following auxiliary characters are missing from the font: ŀ
    The following auxiliary characters are missing from the font: ŏ
    The following auxiliary characters are missing from the font: ō
    The following auxiliary characters are missing from the font: ŭ
    Auxiliary orthography codepoints: * lt_Latn (Lithuanian)
    The following auxiliary characters are missing from the font: Ẽ
    The following auxiliary characters are missing from the font: Ĩ
    The following auxiliary characters are missing from the font: Ũ
    The following auxiliary characters are missing from the font: ẽ
    The following auxiliary characters are missing from the font: ĩ
    The following auxiliary characters are missing from the font: ũ
    Auxiliary orthography codepoints: * lv_Latn (Latvian)
    The following auxiliary characters are missing from the font: Ō
    The following auxiliary characters are missing from the font: Ŗ
    The following auxiliary characters are missing from the font: ō
    The following auxiliary characters are missing from the font: ŗ
    Auxiliary orthography codepoints: * en_Latn (English)
    The following auxiliary characters are missing from the font: Ĕ
    The following auxiliary characters are missing from the font: Ĭ
    The following auxiliary characters are missing from the font: Ŏ
    The following auxiliary characters are missing from the font: Ō
    The following auxiliary characters are missing from the font: Ŭ
    The following auxiliary characters are missing from the font: ĕ
    The following auxiliary characters are missing from the font: ĭ
    The following auxiliary characters are missing from the font: ŏ
    The following auxiliary characters are missing from the font: ō
    The following auxiliary characters are missing from the font: ŭ
    The following auxiliary characters are missing from the font: ʻ
    Auxiliary orthography codepoints: * fr_Latn (French)
    The following auxiliary characters are missing from the font: Ǔ
    The following auxiliary characters are missing from the font: ſ
    The following auxiliary characters are missing from the font: ǔ
    Auxiliary orthography codepoints: * nb_Latn (Norwegian Bokmål)
    The following auxiliary characters are missing from the font: Ǎ
    The following auxiliary characters are missing from the font: Ŋ
    The following auxiliary characters are missing from the font: Ŧ
    The following auxiliary characters are missing from the font: ǎ
    The following auxiliary characters are missing from the font: ŋ
    The following auxiliary characters are missing from the font: ŧ
    Auxiliary orthography codepoints: * de_Latn (German)
    The following auxiliary characters are missing from the font: Ĕ
    The following auxiliary characters are missing from the font: Ĭ
    The following auxiliary characters are missing from the font: Ŏ
    The following auxiliary characters are missing from the font: Ō
    The following auxiliary characters are missing from the font: Ŭ
    The following auxiliary characters are missing from the font: ĕ
    The following auxiliary characters are missing from the font: ĭ
    The following auxiliary characters are missing from the font: ŏ
    The following auxiliary characters are missing from the font: ō
    The following auxiliary characters are missing from the font: ſ
    The following auxiliary characters are missing from the font: ŭ
    Auxiliary orthography codepoints: * cs_Latn (Czech)
    The following auxiliary characters are missing from the font: Ĕ * cy_Latn (Welsh)
    The following auxiliary characters are missing from the font: Ĭ * es_Latn (Spanish)
    The following auxiliary characters are missing from the font: Ŏ * hu_Latn (Hungarian)
    The following auxiliary characters are missing from the font: Ō * pt_Latn (Portuguese)
    The following auxiliary characters are missing from the font: Ŭ * sk_Latn (Slovak)
    The following auxiliary characters are missing from the font: ĕ * tr_Latn (Turkish)
    The following auxiliary characters are missing from the font: ĭ
    The following auxiliary characters are missing from the font: ŏ
    The following auxiliary characters are missing from the font: ō
    The following auxiliary characters are missing from the font: ŭ
    Auxiliary orthography codepoints: * da_Latn (Danish)
    The following auxiliary characters are missing from the font: Ǿ
    The following auxiliary characters are missing from the font: ǿ
    [code: warning-language-shaping]

Font has correct separator glyphs?

Check ID: googlefonts/separator_glyphs
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

    Missing separator glyph U+2028

    [code: missing-separator-glyphs]
  • ⚠️ WARN

    Missing separator glyph U+2029

    [code: missing-separator-glyphs]

Font File Checks

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

Check ID: googlefonts/meta/script_lang_tags
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

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

    [code: lacks-meta-table]

Validate STAT particle names and values match the fallback names in GFAxisRegistry.

Check ID: googlefonts/STAT/axisregistry
🔥 NotoTraditionalNushu[wght].ttf
  • 🔥 FAIL

    STAT table is missing Axis Value Records

    [code: missing-axis-values]

Check a font's STAT table contains compulsory Axis Values.

Check ID: googlefonts/STAT/compulsory_axis_values
🔥 NotoTraditionalNushu[wght].ttf
  • 🔥 FAIL

    Compulsory STAT Axis Values are incorrect:

    Name Axis Current Value Expected Value Current Flags Expected Flags Current Linked Value Expected Linked Value
    Bold wght N/A 700 N/A 0 N/A N/A
    Light wght N/A 300 N/A 0 N/A N/A
    Medium wght N/A 500 N/A 0 N/A N/A
    Regular wght N/A 400 N/A 2 N/A 700
    SemiBold wght N/A 600 N/A 0 N/A N/A
    [code: bad-axis-values]

Version number has increased since previous release on Google Fonts?

Check ID: googlefonts/version_bump
🔥 NotoTraditionalNushu[wght].ttf
  • 🔥 FAIL

    Version number 2.003006 is equal to version on Google fonts

    [code: same-version]

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

Check ID: googlefonts/vertical_metrics_regressions
🔥 NotoTraditionalNushu[wght].ttf
  • 🔥 FAIL

    hhea Ascender is 1055 when it should be 860

    [code: bad-hhea-ascender]

Shaping Checks

Ensure dotted circle glyph is present and can attach marks.

Check ID: dotted_circle
⚠️ NotoTraditionalNushu[wght].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: soft_dotted
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

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

    • į̌

    • į̀

    • į̃

    • į́

    • į̂

    • į̄The dot of soft dotted characters should disappear in other cases, for example:

    • į̊

    • į̋

    • į̈

    • į̆

    • į̇

    [code: soft-dotted]

Outline Checks

Check the direction of the outermost contour in each glyph

Check ID: outline_direction
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

    The following glyphs have a counter-clockwise outer contour:

    • uniE004 (U+E004) has a counter-clockwise outer contour
    [code: ccw-outer-contour]

Check there are no overlapping path segments

Check ID: overlapping_path_segments
⚠️ NotoTraditionalNushu[wght].ttf
  • ⚠️ WARN

    The following glyphs have overlapping path segments:

    • u1B2EE (U+1B2EE): Line(Line { p0: (350.0, 315.0), p1: (374.0, 309.0) }) has the same coordinates as a previous segment.
    [code: overlapping-path-segments]