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.

Summary

💥 ERROR 🔥 FAIL ⚠️ WARN ⏩ SKIP ℹ️ INFO ✅ PASS
0 2 9 118 7 113
0% 1% 5% 64% 4% 62%

Note: The following loglevels were omitted in this report: SKIP, INFO, PASS, DEBUG

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: 0.9.2

Section: Google Fonts

🔥⚠️⚠️⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩ℹ️ℹ️ℹ️ℹ️ℹ️

Check for codepoints not covered by METADATA subsets.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/unreachable_subsetting>
⚠️ NotoSerifAhom-Regular.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+02C7 CARON: try adding one of: tifinagh, canadian-aboriginal, yi
    • U+02C9 MODIFIER LETTER MACRON: not included in any glyphset definition
    • 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+02DD DOUBLE ACUTE ACCENT: not included in any glyphset definition
    • U+0302 COMBINING CIRCUMFLEX ACCENT: try adding one of: tifinagh, math, cherokee, coptic
    • U+0306 COMBINING BREVE: try adding one of: tifinagh, old-permic
    • U+0307 COMBINING DOT ABOVE: try adding one of: tai-le, old-permic, syriac, math, malayalam, tifinagh, canadian-aboriginal, coptic
    • U+030A COMBINING RING ABOVE: try adding syriac 13 more.

    Use -F or --full-lists to disable shortening of long lists.

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

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

Check ID: <FontBakeryCheck:com.google.fonts/check/meta/script_lang_tags>
⚠️ NotoSerifAhom-Regular.ttf
  • ⚠️ WARN

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

Noto fonts must have an ARTICLE.en_us.html file

Check ID: <FontBakeryCheck:com.google.fonts/check/description/noto_has_article>
🔥 NotoSerifAhom-Regular.ttf
  • 🔥 FAIL

    This is a Noto font but it lacks an ARTICLE.en_us.html file [code: missing-article]

Section: Universal

⚠️⚠️⚠️⏩⏩⏩⏩⏩⏩ℹ️ℹ️

Font has **proper** whitespace glyph names?

Check ID: <FontBakeryCheck:com.google.fonts/check/whitespace_glyphnames>
⚠️ NotoSerifAhom-Regular.ttf
  • ⚠️ WARN

    Glyph 0x00A0 is called "nbspace": Change to "uni00A0" [code: not-recommended-00a0]

Check if each glyph has the recommended amount of contours.

Check ID: <FontBakeryCheck:com.google.fonts/check/contour_count>
⚠️ NotoSerifAhom-Regular.ttf
  • ⚠️ WARN

    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: aogonek	Contours detected: 3	Expected: 2
    
    - Glyph name: Uogonek	Contours detected: 2	Expected: 1
    
    - Glyph name: uogonek	Contours detected: 2	Expected: 1
    
    - Glyph name: Uogonek	Contours detected: 2	Expected: 1
    
    - Glyph name: aogonek	Contours detected: 3	Expected: 2
    
    - Glyph name: uogonek	Contours detected: 2	Expected: 1
    

    [code: contour-count]

Check math signs have the same width.

Check ID: <FontBakeryCheck:com.google.fonts/check/math_signs_width>
⚠️ NotoSerifAhom-Regular.ttf
  • ⚠️ WARN

    The most common width is 559 among a set of 6 math glyphs. The following math glyphs have a different width, though:

    Width = 310: minus [code: width-outliers]

Section: Outline Correctness Checks

⚠️⚠️⚠️

Are there any misaligned on-curve points?

Check ID: <FontBakeryCheck:com.google.fonts/check/outline_alignment_miss>
⚠️ NotoSerifAhom-Regular.ttf
  • ⚠️ WARN

    The following glyphs have on-curve points which have potentially incorrect y coordinates:

    * dollar (U+0024): X=253.0,Y=682.0 (should be at cap-height 680?)
    
    * percent (U+0025): X=210.0,Y=682.0 (should be at cap-height 680?)
    
    * comma (U+002C): X=114.0,Y=1.0 (should be at baseline 0?)
    
    * zero (U+0030): X=146.0,Y=679.0 (should be at cap-height 680?)
    
    * zero (U+0030): X=411.0,Y=679.0 (should be at cap-height 680?)
    
    * two (U+0032): X=417.0,Y=678.5 (should be at cap-height 680?)
    
    * three (U+0033): X=334.5,Y=1.0 (should be at baseline 0?)
    
    * nine (U+0039): X=139.0,Y=2.0 (should be at baseline 0?)
    
    * semicolon (U+003B): X=132.0,Y=1.0 (should be at baseline 0?)
    
    * G (U+0047): X=519.0,Y=1.5 (should be at baseline 0?)
    
    * 86 more.
    

    Use -F or --full-lists to disable shortening of long lists. [code: found-misalignments]

Do outlines contain any jaggy segments?

Check ID: <FontBakeryCheck:com.google.fonts/check/outline_jaggy_segments>
⚠️ NotoSerifAhom-Regular.ttf
  • ⚠️ WARN

    The following glyphs have jaggy segments:

    * ca_ahom (U+11740): L<<584.0,378.0>--<583.0,62.0>>/B<<583.0,62.0>-<591.0,116.0>-<605.5,183.5>> = 8.245653868781645 [code: found-jaggy-segments]
    

Do outlines contain any semi-vertical or semi-horizontal lines?

Check ID: <FontBakeryCheck:com.google.fonts/check/outline_semi_vertical>
⚠️ NotoSerifAhom-Regular.ttf
  • ⚠️ WARN

    The following glyphs have semi-vertical/semi-horizontal lines:

    * ca_ahom (U+11740): L<<584.0,378.0>--<583.0,62.0>> [code: found-semi-vertical]
    

Section: Shaping Checks

🔥⚠️⏩⏩

Check that texts shape as per expectation

Check ID: <FontBakeryCheck:com.google.fonts/check/shaping/regression>
🔥 NotoSerifAhom-Regular.ttf
  • 🔥 FAIL

    qa/shaping_tests/ahom.json: Expected and actual shaping not matching

    qa/shaping_tests/ahom.json: Expected and actual shaping not matching

  • Shaping did not match: 𑜃𑜢𑜤 (notofonts/noto-fonts#1372)
  • Expected: na_ahom=0+879|iSign_ahom=0@-231,0+0|uSign_ahom=0@-234,0+0
    Got     : na_ahom=0+879|iSign_ahom=0@-431,200+0|uSign_ahom=0@-234,0+0
                                          ^
    

    Got: Expected:

  • Shaping did not match: 𑜃𑜡 𑜃𑜝𑜡 (#1)
  • Expected: na_ahom=0+718|aaSign_ahom=0+264|space=2+220|na_ahom=3+718|medialLa_ahom.sm=3@-38,0+0|aaSign_ahom=3+264
    Got     : na_ahom=0+788|aaSign_ahom=0+264|space=2+220|na_ahom=3+788|medialLa_ahom.sm=3@-108,0+0|aaSign_ahom=3+264
                         ^                                           ^                      ^
    

    Got: Expected:

  • Shaping did not match: 𑜅𑜞𑜊 𑜅𑜦𑜊 𑜅𑜝𑜊 𑜀𑜝 (#3)
  • Expected: t_ja_ahom=0+992|medialRa_ahom.sm=0@-280,0+0|space=3+220|eSign_ahom=4+570|t_ja_ahom=4+1142|space=7+220|t_ja_ahom=8+1142|medialLa_ahom.sm=8@-167,0+0|space=11+220|ka_ahom=12+944|medialLa_ahom=12@16,0+0
    Got     : t_ja_ahom=0+1142|medialRa_ahom.sm=0@-430,0+0|space=3+220|eSign_ahom=4+570|t_ja_ahom=4+1142|space=7+220|t_ja_ahom=8+1142|medialLa_ahom.sm=8@-167,0+0|space=11+220|ka_ahom=12+944|medialLa_ahom=12@16,0+0
                          ^^                      ^^
    

    Got: Expected:

    [code: shaping-regression]

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

    Check ID: <FontBakeryCheck:com.google.fonts/check/soft_dotted>
    ⚠️ NotoSerifAhom-Regular.ttf
    • ⚠️ WARN

      The dot of soft dotted characters used in orthographies must disappear in the following strings: į̀ į́ į̂ į̃ į̄ į̌

      The dot of soft dotted characters should disappear in other cases, for example: į̆ į̇ į̈ į̊ į̋ į̒ į̦̀ į̦́ į̦̂ į̦̃ į̦̄ į̦̆ į̦̇ į̦̈ į̦̊ į̦̋ į̦̌ į̦̒ į̧̀ į̧́

      Your font fully covers the following languages that require the soft-dotted feature: Lithuanian (Latn, 2,357,094 speakers), Dutch (Latn, 31,709,104 speakers).

      Your font does not cover the following languages that require the soft-dotted feature: Navajo (Latn, 166,319 speakers), Ukrainian (Cyrl, 29,273,587 speakers), Aghem (Latn, 38,843 speakers), Igbo (Latn, 27,823,640 speakers), Basaa (Latn, 332,940 speakers), Belarusian (Cyrl, 10,064,517 speakers). [code: soft-dotted]