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/googlefonts/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	11	122	7	104
0%	1%	6%	67%	4%	57%

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

<Section: Google Fonts> 🔥⚠️⚠️⚠️⚠️⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩ℹ️ℹ️ℹ️ℹ️ℹ️

Combined length of family and style must not exceed 27 characters.

Check ID: <FontBakeryCheck:com.google.fonts/check/name/family_and_style_max_length>

⚠️ fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-Regular.ttf

⚠️ WARN
The combined length of family and style exceeds 27 chars in the following 'WINDOWS' entries: FONT_FAMILY_NAME = 'Noto Fangsong KSS Vertical' / SUBFAMILY_NAME = 'Regular'

Please take a look at the conversation at https://github.com/googlefonts/fontbakery/issues/2179 in order to understand the reasoning behind these name table records max-length criteria. [code: too-long]

Check font follows the Google Fonts CJK vertical metric schema

Check ID: <FontBakeryCheck:com.google.fonts/check/cjk_vertical_metrics>

⚠️ fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-Regular.ttf

⚠️ WARN
We recommend the absolute sum of the hhea metrics should be between 1.1-1.4x of the font's upm. This font has 2.0x [code: bad-hhea-range]

Does the font contain less than 40 CJK characters?

Check ID: <FontBakeryCheck:com.google.fonts/check/cjk_not_enough_glyphs>

⚠️ fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-Regular.ttf

⚠️ WARN
There are only 9 CJK glyphs when there needs to be at least 40 in order to support the smallest CJK writing system, Hangul. The following CJK glyphs were found: ['uni4E39', 'uni4EFF', 'uni4F53', 'uni5951', 'uni5B57', 'uni5B8B', 'uni5C0F', 'uni6B4C', 'uni8C37'] Please check that these glyphs have the correct unicodes. [code: cjk-not-enough-glyphs]

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

Check ID: <FontBakeryCheck:com.google.fonts/check/meta/script_lang_tags>

⚠️ fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-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>

🔥 fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-Regular.ttf

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

<Section: Universal> 🔥⚠️⚠️⚠️⏩⏩⏩⏩⏩⏩⏩ℹ️ℹ️

Check if each glyph has the recommended amount of contours.

Check ID: <FontBakeryCheck:com.google.fonts/check/contour_count>

⚠️ fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-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]

Does the font contain chws and vchw features?

Check ID: <FontBakeryCheck:com.google.fonts/check/cjk_chws_feature>

⚠️ fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-Regular.ttf

⚠️ WARN
chws feature not found in font. Use chws_tool (https://github.com/googlefonts/chws_tool) to add it. [code: missing-chws-feature]
⚠️ WARN
vchw feature not found in font. Use chws_tool (https://github.com/googlefonts/chws_tool) to add it. [code: missing-vchw-feature]

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

Check ID: <FontBakeryCheck:com.google.fonts/check/soft_dotted>

🔥 fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-Regular.ttf

🔥 FAIL
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: ĩ̦ ĭ̦ i̦̇ i̦̊ i̦̋ ǐ̦ i̦̒ ĩ̧ ĭ̧ i̧̇ i̧̊ i̧̋ ǐ̧ i̧̒ j̦̀ j̦́ ĵ̦ j̦̃ j̦̄ j̦̆ [code: soft-dotted]

Check math signs have the same width.

Check ID: <FontBakeryCheck:com.google.fonts/check/math_signs_width>

⚠️ fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-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: fontbakery.profiles.gdef> ⚠️

Check mark characters are in GDEF mark glyph class.

Check ID: <FontBakeryCheck:com.google.fonts/check/gdef_mark_chars>

⚠️ fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-Regular.ttf

⚠️ WARN
The following mark characters could be in the GDEF mark glyph class: acutecomb (U+0301), gravecomb (U+0300), tildecomb (U+0303), u16FE4 (U+16FE4), uni0302 (U+0302), uni0304 (U+0304), uni0306 (U+0306), uni0307 (U+0307), uni0308 (U+0308), uni030A (U+030A) and 6 more.

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

<Section: Outline Correctness Checks> ⚠️⚠️⚠️

Do any segments have colinear vectors?

Check ID: <FontBakeryCheck:com.google.fonts/check/outline_colinear_vectors>

⚠️ fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-Regular.ttf

⚠️ WARN

The following glyphs have colinear vectors:

* u18B07 (U+18B07): L<<358.0,-3.0>--<429.0,-32.0>> -> L<<429.0,-32.0>--<474.0,-48.0>>

* u18B07 (U+18B07): L<<496.0,597.0>--<496.0,608.0>> -> L<<496.0,608.0>--<496.0,613.0>>

* u18B07 (U+18B07): L<<497.0,338.0>--<496.0,597.0>> -> L<<496.0,597.0>--<496.0,608.0>>

* u18B38 (U+18B38): L<<490.0,-32.0>--<490.0,28.0>> -> L<<490.0,28.0>--<491.0,344.0>>

* u18B39 (U+18B39): L<<470.0,-49.0>--<470.0,28.0>> -> L<<470.0,28.0>--<471.0,344.0>>

* u18B3E (U+18B3E): L<<190.0,-2.0>--<191.0,131.0>> -> L<<191.0,131.0>--<190.0,262.0>>

* u18B41 (U+18B41): L<<719.0,396.0>--<605.0,384.0>> -> L<<605.0,384.0>--<533.0,376.0>>

* u18B57 (U+18B57): L<<419.0,93.0>--<394.0,70.0>> -> L<<394.0,70.0>--<369.0,46.0>>

* u18B5A (U+18B5A): L<<253.0,335.0>--<444.0,347.0>> -> L<<444.0,347.0>--<448.0,347.0>>

* u18B60 (U+18B60): L<<846.0,402.0>--<668.0,392.0>> -> L<<668.0,392.0>--<600.0,388.0>> 

* 80 more.

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

Do outlines contain any jaggy segments?

Check ID: <FontBakeryCheck:com.google.fonts/check/outline_jaggy_segments>

⚠️ fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-Regular.ttf

⚠️ WARN

The following glyphs have jaggy segments:

* u18B10 (U+18B10): B<<780.0,481.0>-<741.0,439.0>-<742.0,440.0>>/B<<742.0,440.0>-<708.0,407.0>-<673.5,378.5>> = 0.8550973962662667

* u18B3C (U+18B3C): B<<209.0,307.0>-<250.0,266.0>-<294.0,237.0>>/B<<294.0,237.0>-<293.0,238.0>-<420.0,152.0>> = 11.611486423888481

* u18B81 (U+18B81): B<<838.0,326.0>-<799.0,284.0>-<800.0,285.0>>/B<<800.0,285.0>-<716.0,203.0>-<644.0,155.0>> = 0.6902771978645523

* u18BB1 (U+18BB1): B<<455.0,362.0>-<431.0,360.0>-<435.0,360.0>>/B<<435.0,360.0>-<380.0,355.0>-<313.0,341.0>> = 5.1944289077348

* u18BEA (U+18BEA): B<<598.0,608.0>-<508.0,600.0>-<524.0,601.0>>/B<<524.0,601.0>-<390.0,588.0>-<347.0,583.0>> = 1.9648704030421524

* u18BEB (U+18BEB): B<<599.0,608.0>-<502.0,600.0>-<522.0,601.0>>/B<<522.0,601.0>-<493.0,598.0>-<427.0,592.0>> = 3.0437358876587015

* u18C0A (U+18C0A): B<<899.0,514.0>-<801.0,505.0>-<807.0,506.0>>/B<<807.0,506.0>-<688.0,496.0>-<578.0,485.0>> = 4.6588364489565155

* u18C0B (U+18C0B): B<<859.0,514.0>-<761.0,505.0>-<767.0,506.0>>/B<<767.0,506.0>-<641.0,496.0>-<524.0,484.0>> = 4.924549700118923

* u18C65 (U+18C65): B<<773.0,592.0>-<755.0,571.0>-<757.0,573.0>>/B<<757.0,573.0>-<706.0,512.0>-<660.0,464.0>> = 5.102165252358147

* u18CB2 (U+18CB2): B<<371.0,355.0>-<458.0,365.0>-<453.0,364.0>>/B<<453.0,364.0>-<478.0,367.0>-<492.5,375.0>> = 4.46715906138917 

* u18CB3 (U+18CB3): B<<377.0,617.0>-<328.0,611.0>-<333.0,612.0>>/B<<333.0,612.0>-<303.0,610.0>-<254.0,602.0>> = 7.495857639729836 [code: found-jaggy-segments]

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

Check ID: <FontBakeryCheck:com.google.fonts/check/outline_semi_vertical>

⚠️ fonts/NotoFangsongKSSVertical/googlefonts/ttf/NotoFangsongKSSVertical-Regular.ttf

⚠️ WARN

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

* u18B03 (U+18B03): L<<531.0,182.0>--<530.0,-136.0>>

* u18B07 (U+18B07): L<<497.0,338.0>--<496.0,597.0>>

* u18B0B (U+18B0B): L<<527.0,175.0>--<526.0,-149.0>>

* u18B14 (U+18B14): L<<551.0,485.0>--<550.0,168.0>>

* u18B15 (U+18B15): L<<531.0,485.0>--<530.0,168.0>>

* u18B17 (U+18B17): L<<545.0,378.0>--<544.0,175.0>>

* u18B18 (U+18B18): L<<535.0,391.0>--<534.0,224.0>>

* u18B19 (U+18B19): L<<534.0,426.0>--<533.0,303.0>>

* u18B1E (U+18B1E): L<<529.0,154.0>--<528.0,-113.0>>

* u18B1F (U+18B1F): L<<827.0,128.0>--<826.0,-148.0>> 

* 81 more.

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