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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
2 20 8 120 60
1% 10% 4% 57% 29%

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

Universal Profile Checks

Check accent of Lcaron, dcaron, lcaron, tcaron

Check ID: alt_caron
⚠️ NotoSansBamum[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]

Does the font contain chws and vchw features?

Check ID: cjk_chws_feature
⚠️ NotoSansBamum[wght].ttf

Detect any interpolation issues in the font.

Check ID: interpolation_issues
⚠️ NotoSansBamum[wght].ttf
  • ⚠️ WARN

    Interpolation issue in uniA6A5: Contour order mismatch: [0, 1, 2] in default vs [0, 2, 1] in wght=400

    [code: interpolation-issue]
  • ⚠️ WARN

    Interpolation issue in uniA6DD: Wrong start point: contour 1 should start at 7 in wght=400

    [code: interpolation-issue]
  • ⚠️ WARN

    Interpolation issue in uniA6DD: Contour 1 becomes underweight in wght=400 compared to default

    [code: interpolation-issue]

Check math signs have the same width.

Check ID: math_signs_width
⚠️ NotoSansBamum[wght].ttf
  • ⚠️ WARN

    The most common width is 581 among a set of 7 math glyphs. The following math glyphs have a different width, though: width=572: equal, greater, less

    [code: width-outliers]

Ensure indic fonts have the Indian Rupee Sign glyph.

Check ID: rupee
⚠️ NotoSansBamum[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]

Ensure variable fonts have relatively consistent sidebearings.

Check ID: suspicious_sidebearings
⚠️ NotoSansBamum[wght].ttf
  • ⚠️ WARN

    Glyph "uni25CC" has suspiciously high variation (z-score 14.75) in right sidebearings at locations: wght=400.00 wght=499.99 wght=600.01

    [code: large-rsb-variation]

Metadata Checks

Check for codepoints not covered by METADATA subsets.

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

    fonts/NotoSansBamum/googlefonts/variable-ttf/NotoSansBamum[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: canadian-aboriginal, yi
    • 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: tifinagh, canadian-aboriginal, math, old-permic, syriac, duployan, todhri, coptic, hebrew, malayalam, tai-le
    • 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+0326 COMBINING COMMA BELOW: try adding math
    • U+0327 COMBINING CEDILLA: try adding math
    • U+25CC DOTTED CIRCLE: try adding one of: kharoshthi, yi, tibetan, hanunoo, grantha, psalter-pahlavi, kaithi, tirhuta, armenian, coptic, sogdian, khmer, lao, syloti-nagri, soyombo, phags-pa, new-tai-lue, caucasian-albanian, warang-citi, kannada, newa, myanmar, bassa-vah, miao, zanabazar-square, modi, osage, elbasan, rejang, siddham, canadian-aboriginal, adlam, batak, wancho, devanagari, meetei-mayek, thai, sundanese, tagalog, pahawh-hmong, sinhala, mahajani, oriya, ahom, nko, old-permic, tifinagh, brahmi, mende-kikakui, javanese, marchen, math, sharada, khojki, tai-le, thaana, tagbanwa, saurashtra, gujarati, syriac, takri, gunjala-gondi, hebrew, masaram-gondi, chakma, bhaiksuki, kayah-li, balinese, bengali, malayalam, tai-tham, buginese, manichaean, limbu, gurmukhi, cham, duployan, buhid, lepcha, mandaic, mongolian, symbols, music, tamil, dogra, tai-viet, telugu, khudawadi, hanifi-rohingya

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

    [code: unreachable-subsetting]

Glyphset Checks

Shapes languages in all GF glyphsets.

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

    Warning language shaping:

    Message Languages
    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: * 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: * 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: * 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: * 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: * da_Latn (Danish)
    The following auxiliary characters are missing from the font: Ǿ
    The following auxiliary characters are missing from the font: ǿ
    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: * 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: * 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: * 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: * 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
    [code: warning-language-shaping]

Font has correct separator glyphs?

Check ID: googlefonts/separator_glyphs
⚠️ NotoSansBamum[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
⚠️ NotoSansBamum[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
🔥 NotoSansBamum[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
🔥 NotoSansBamum[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
    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]

Shaping Checks

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

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

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

    • į̂

    • į̌

    • į̄

    • į̀

    • į̃

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

    • į̈

    • į̋

    • į̊

    • į̇

    • į̆

    [code: soft-dotted]

Outline Checks

Check the direction of the outermost contour in each glyph

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

    The following glyphs have a counter-clockwise outer contour:

    • u168D0 (U+168D0) has a path with no bounds (probably a single point)
    • uni25CC (U+25CC) has a counter-clockwise outer contour
    • uni25CC (U+25CC) has a counter-clockwise outer contour
    • uni25CC (U+25CC) has a counter-clockwise outer contour
    • uni25CC (U+25CC) has a counter-clockwise outer contour
    • uni25CC (U+25CC) has a counter-clockwise outer contour
    • uni25CC (U+25CC) has a counter-clockwise outer contour
    • uni25CC (U+25CC) has a counter-clockwise outer contour
    • uni25CC (U+25CC) has a counter-clockwise outer contour
    • uni25CC (U+25CC) has a counter-clockwise outer contour
    • uni25CC (U+25CC) has a counter-clockwise outer contour
    • uni25CC (U+25CC) has a counter-clockwise outer contour
    • uni25CC (U+25CC) has a counter-clockwise outer contour
    [code: ccw-outer-contour]

Check there are no overlapping path segments

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

    The following glyphs have overlapping path segments:

    • u168D0 (U+168D0): Line(Line { p0: (377.0, 17.0), p1: (375.0, 15.0) }) has the same coordinates as a previous segment.
    • u168D0 (U+168D0): Line(Line { p0: (115.0, 470.0), p1: (115.0, 465.0) }) has the same coordinates as a previous segment.
    • u168D0 (U+168D0): Line(Line { p0: (663.0, 62.0), p1: (665.0, 61.0) }) has the same coordinates as a previous segment.
    • u168D0 (U+168D0): Line(Line { p0: (269.0, 677.0), p1: (270.0, 675.0) }) has the same coordinates as a previous segment.
    • u168D0 (U+168D0): Line(Line { p0: (269.0, 677.0), p1: (270.0, 675.0) }) has the same coordinates as a previous segment.
    • u168D0 (U+168D0): Line(Line { p0: (819.0, 283.0), p1: (820.0, 281.0) }) has the same coordinates as a previous segment.
    • u168D0 (U+168D0): Line(Line { p0: (555.0, 722.0), p1: (553.0, 721.0) }) has the same coordinates as a previous segment.
    • u168D0 (U+168D0): Line(Line { p0: (771.0, 566.0), p1: (773.0, 568.0) }) has the same coordinates as a previous segment.
    • u168D0 (U+168D0): Line(Line { p0: (773.0, 568.0), p1: (771.0, 566.0) }) has the same coordinates as a previous segment.
    [code: overlapping-path-segments]