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 1 10 62 8 160
0% 1% 6% 35% 5% 91%

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

⚠️⚠️⚠️⚠️⚠️⚠️⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩ℹ️ℹ️ℹ️ℹ️ℹ️ℹ️

Checking OS/2 achVendID.

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

    OS/2 VendorID value 'NONE' is not yet recognized. If you registered it recently, then it's safe to ignore this warning message. Otherwise, you should set it to your own unique 4 character code, and register it with Microsoft at https://www.microsoft.com/typography/links/vendorlist.aspx [code: unknown]

Check for codepoints not covered by METADATA subsets.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/unreachable_subsetting>
⚠️ VinaSans-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
    • U+02C8 MODIFIER LETTER VERTICAL LINE: not included in any glyphset definition
    • U+02D8 BREVE: try adding canadian-aboriginal
    • U+02D9 DOT ABOVE: try adding canadian-aboriginal
    • U+02DB OGONEK: try adding canadian-aboriginal
    • U+02DD DOUBLE ACUTE ACCENT: not included in any glyphset definition
    • U+0300 COMBINING GRAVE ACCENT: try adding one of: tai-le, coptic, cherokee
    • U+0301 COMBINING ACUTE ACCENT: try adding one of: tai-le, coptic, tifinagh, cherokee
    • U+0302 COMBINING CIRCUMFLEX ACCENT: try adding one of: coptic, tifinagh, cherokee
    • U+0303 COMBINING TILDE: not included in any glyphset definition
    • U+0304 COMBINING MACRON: try adding one of: coptic, gothic, cherokee, tifinagh
    • U+0306 COMBINING BREVE: try adding tifinagh
    • U+0307 COMBINING DOT ABOVE: try adding one of: tai-le, coptic, malayalam, tifinagh, canadian-aboriginal
    • U+0308 COMBINING DIAERESIS: try adding one of: tai-le, coptic, gothic
    • U+0309 COMBINING HOOK ABOVE: try adding tifinagh
    • U+030A COMBINING RING ABOVE: not included in any glyphset definition
    • U+030B COMBINING DOUBLE ACUTE ACCENT: try adding cherokee
    • U+030C COMBINING CARON: try adding one of: tai-le, cherokee
    • U+0312 COMBINING TURNED COMMA ABOVE: not included in any glyphset definition
    • U+031B COMBINING HORN: not included in any glyphset definition
    • U+0323 COMBINING DOT BELOW: try adding one of: malayalam, coptic, tifinagh, cherokee
    • U+0326 COMBINING COMMA BELOW: not included in any glyphset definition
    • U+0327 COMBINING CEDILLA: not included in any glyphset definition
    • U+0328 COMBINING OGONEK: not included in any glyphset definition
    • U+2021 DOUBLE DAGGER: not included in any glyphset definition
    • U+2030 PER MILLE SIGN: not included in any glyphset definition
    • U+2190 LEFTWARDS ARROW: not included in any glyphset definition
    • U+2192 RIGHTWARDS ARROW: not included in any glyphset definition
    • U+2194 LEFT RIGHT ARROW: not included in any glyphset definition
    • U+2195 UP DOWN ARROW: not included in any glyphset definition
    • U+2196 NORTH WEST ARROW: not included in any glyphset definition
    • U+2197 NORTH EAST ARROW: not included in any glyphset definition
    • U+2198 SOUTH EAST ARROW: not included in any glyphset definition
    • U+2199 SOUTH WEST ARROW: not included in any glyphset definition
    • U+2202 PARTIAL DIFFERENTIAL: not included in any glyphset definition
    • U+2205 EMPTY SET: not included in any glyphset definition
    • U+220F N-ARY PRODUCT: not included in any glyphset definition
    • U+2211 N-ARY SUMMATION: not included in any glyphset definition
    • U+221A SQUARE ROOT: not included in any glyphset definition
    • U+221E INFINITY: not included in any glyphset definition
    • U+222B INTEGRAL: not included in any glyphset definition
    • U+2248 ALMOST EQUAL TO: not included in any glyphset definition
    • U+2260 NOT EQUAL TO: not included in any glyphset definition
    • U+2264 LESS-THAN OR EQUAL TO: not included in any glyphset definition
    • U+2265 GREATER-THAN OR EQUAL TO: not included in any glyphset definition
    • U+25CA LOZENGE: not included in any glyphset definition
    • U+263A WHITE SMILING FACE: not included in any glyphset definition

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

A static fonts directory with at least two fonts must accompany variable fonts

Check ID: <FontBakeryCheck:com.google.fonts/check/repo/vf_has_static_fonts>
⚠️ VinaSans-Regular.ttf
  • ⚠️ WARN

    Please consider adding a subdirectory called "static/" and including in it static font files. [code: missing]

On a family update, the DESCRIPTION.en_us.html file should ideally also be updated.

Check ID: <FontBakeryCheck:com.google.fonts/check/description/family_update>
⚠️ VinaSans-Regular.ttf
  • ⚠️ WARN

    The DESCRIPTION.en_us.html file in this family has not changed in comparison to the latest font release on the google/fonts github repo. Please consider mentioning note-worthy improvements made to the family recently. [code: description-not-updated]

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

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

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

Check if category on METADATA.pb matches what can be inferred from the family name.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/category_hints>
⚠️ VinaSans-Regular.ttf
  • ⚠️ WARN

    Familyname seems to hint at "SANS_SERIF" but METADATA.pb declares it as "['DISPLAY']". [code: inferred-category]

Section: Universal

🔥⚠️⚠️⏩⏩⏩⏩⏩⏩ℹ️ℹ️

Check font contains no unreachable glyphs

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

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

    - Dcroat.001
    
    - G.001
    
    - Gtilde
    
    - O_O.001
    
    - U_A.001
    
    - a.001
    
    - ampersand.001
    
    - at.001
    
    - at.002
    
    - exclam.001
    
    - i.001
    
    - lol
    
    - nguyen
    
    - r.001
    
    - uni030C.alt
    
    - v.001
    
    - y.001
    
    - y.002
    

    [code: unreachable-glyphs]

Check if each glyph has the recommended amount of contours.

Check ID: <FontBakeryCheck:com.google.fonts/check/contour_count>
⚠️ VinaSans-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: b	Contours detected: 3	Expected: 2
    
    - Glyph name: g	Contours detected: 1	Expected: 2 or 3
    
    - Glyph name: r	Contours detected: 2	Expected: 1
    
    - Glyph name: aogonek	Contours detected: 3	Expected: 2
    
    - Glyph name: eogonek	Contours detected: 3	Expected: 2
    
    - Glyph name: gbreve	Contours detected: 2	Expected: 3 or 4
    
    - Glyph name: gdotaccent	Contours detected: 2	Expected: 3 or 4
    
    - Glyph name: uni0123	Contours detected: 2	Expected: 3 or 4
    
    - Glyph name: hbar	Contours detected: 2	Expected: 1
    
    - Glyph name: ij	Contours detected: 2	Expected: 3 or 4
    
    - Glyph name: oe	Contours detected: 4	Expected: 3
    
    - Glyph name: racute	Contours detected: 3	Expected: 2
    
    - Glyph name: uni0157	Contours detected: 3	Expected: 2
    
    - Glyph name: rcaron	Contours detected: 3	Expected: 2
    
    - Glyph name: Uogonek	Contours detected: 2	Expected: 1
    
    - Glyph name: uogonek	Contours detected: 2	Expected: 1
    
    - Glyph name: uni0237	Contours detected: 2	Expected: 1
    
    - Glyph name: uni1ECB	Contours detected: 2	Expected: 3
    
    - Glyph name: lozenge	Contours detected: 1	Expected: 2
    
    - Glyph name: Uogonek	Contours detected: 2	Expected: 1
    
    - Glyph name: aogonek	Contours detected: 3	Expected: 2
    
    - Glyph name: b	Contours detected: 3	Expected: 2
    
    - Glyph name: eogonek	Contours detected: 3	Expected: 2
    
    - Glyph name: g	Contours detected: 1	Expected: 2 or 3
    
    - Glyph name: gbreve	Contours detected: 2	Expected: 3 or 4
    
    - Glyph name: gdotaccent	Contours detected: 2	Expected: 3 or 4
    
    - Glyph name: hbar	Contours detected: 2	Expected: 1
    
    - Glyph name: ij	Contours detected: 2	Expected: 3 or 4
    
    - Glyph name: lozenge	Contours detected: 1	Expected: 2
    
    - Glyph name: oe	Contours detected: 4	Expected: 3
    
    - Glyph name: r	Contours detected: 2	Expected: 1
    
    - Glyph name: racute	Contours detected: 3	Expected: 2
    
    - Glyph name: rcaron	Contours detected: 3	Expected: 2
    
    - Glyph name: uni0123	Contours detected: 2	Expected: 3 or 4
    
    - Glyph name: uni0157	Contours detected: 3	Expected: 2
    
    - Glyph name: uni0237	Contours detected: 2	Expected: 1
    
    - Glyph name: uni1ECB	Contours detected: 2	Expected: 3
    
    - Glyph name: uogonek	Contours detected: 2	Expected: 1
    

    [code: contour-count]

Check accent of Lcaron, dcaron, lcaron, tcaron (derived from com.google.fonts/check/alt_caron)

Check ID: <FontBakeryCheck:com.google.fonts/check/alt_caron:googlefonts>
🔥 VinaSans-Regular.ttf
  • 🔥 FAIL

    Lcaron uses component quotesingle. [code: bad-mark]

  • 🔥 FAIL

    lcaron uses component quotesingle. [code: bad-mark]

  • ⚠️ WARN

    dcaron is composed of a single component and therefore could not be checked. Please check manually. [code: single-component]

  • ⚠️ WARN

    tcaron is decomposed and therefore could not be checked. Please check manually. [code: decomposed-outline]

Section: Shaping Checks

⚠️⚠️⏩⏩⏩

Ensure dotted circle glyph is present and can attach marks.

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

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

    The dot of soft dotted characters should disappear in other cases, for example: ĭ̦ i̦̇ i̦̊ i̦̋ ǐ̦ i̦̒ j̦̀ j̦́ ĵ̦ j̦̃ j̦̄ j̦̆ j̦̇ j̦̈ j̦̉ j̦̊ j̦̋ ǰ̦ j̦̒ į̆

    Your font fully covers the following languages that require the soft-dotted feature: Igbo (Latn, 27,823,640 speakers).

    Your font does not cover the following languages that require the soft-dotted feature: Ukrainian (Cyrl, 29,273,587 speakers), Belarusian (Cyrl, 10,064,517 speakers), Lithuanian (Latn, 2,357,094 speakers), Basaa (Latn, 332,940 speakers), Navajo (Latn, 166,319 speakers), Dutch (Latn, 31,709,104 speakers), Aghem (Latn, 38,843 speakers). [code: soft-dotted]