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 | ☠ FATAL | 🔥 FAIL | ⚠️ WARN | ⏩ SKIP | ℹ️ INFO | ✅ PASS |
---|---|---|---|---|---|---|
0 | 0 | 9 | 19 | 125 | 17 | 302 |
0% | 0% | 2% | 4% | 26% | 4% | 64% |
Meaning of check results:
- 💥 An ERROR is something wrong with FontBakery itself, possibly a bug.
- ☠ A FATAL is an extremely severe issue that must be addressed immediately.
- 🔥 A FAIL is a problem with the font that must be fixed.
- ⚠️ A WARN is something that you should consider addressing.
- ℹ️ An INFO result simply prints something useful. Typically stats.
- ✅ A PASS means the font looks good for the given checking routine.
- ⏩ And a SKIP happens when the check does not apply to the given font.
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: 0.12.10
OpenType Specification Checks
⚠️⚠️⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩Fonts have consistent underline thickness?
Fonts have consistent PANOSE family type?
Make sure all font files have the same version value.
Check that OS/2.fsSelection bold & italic settings are unique for each NameID1
Verify that each group of fonts with the same nameID 1 has maximum of 4 fonts.
Verify that family names in the name table are consistent across all fonts in the family. Checks Typographic Family name (nameID 16) if present, otherwise uses Font Family name (nameID 1)
CFF table FontName must match name table ID 6 (PostScript name).
Name table ID 6 (PostScript name) must be consistent across platforms.
Check name table for empty records.
Description strings in the name table must not contain copyright info.
Does full font name begin with the font family name?
The variable font 'wght' (Weight) axis coordinate must be 400 on the 'Regular' instance.
The variable font 'wdth' (Width) axis coordinate must be 100 on the 'Regular' instance.
The variable font 'slnt' (Slant) axis coordinate must be zero on the 'Regular' instance.
The variable font 'ital' (Italic) axis coordinate must be zero on the 'Regular' instance.
The variable font 'opsz' (Optical Size) axis coordinate should be between 10 and 16 on the 'Regular' instance.
The variable font 'slnt' (Slant) axis coordinate specifies positive values in its range?
The variable font 'ital' (Italic) axis coordinates is in a valid range?
The variable font 'wght' (Weight) axis coordinate must be within spec range of 1 to 1000 on all instances.
The variable font 'wdth' (Width) axis coordinate must strictly greater than zero.
All fvar axes have a correspondent Axis Record on STAT table?
Does the number of glyphs in the loca table match the maxp table?
EXPERIMENTAL CHECK - Since 2024/Jun/20
Does the font's CFF table top dict strings fit into the ASCII range?
Is the CFF subr/gsubr call depth > 10?
Does the font use deprecated CFF operators or operations?
Is the CFF2 subr/gsubr call depth > 10?
Checking font version fields (head and name table).
Font has correct post table version?
Checking correctness of monospaced metadata.
⚠️ FragmentMonoSC-Regular.ttf
-
⚠️ WARN
The OpenType spec recommends at https://learn.microsoft.com/en-us/typography/opentype/spec/recom#hhea-table that hhea.numberOfHMetrics be set to 3 but this font has 714 instead. Please read https://github.com/fonttools/fonttools/issues/3014 to decide whether this makes sense for your font.
[code: bad-numberOfHMetrics]
⚠️ FragmentMonoSC-Italic.ttf
-
⚠️ WARN
The OpenType spec recommends at https://learn.microsoft.com/en-us/typography/opentype/spec/recom#hhea-table that hhea.numberOfHMetrics be set to 3 but this font has 714 instead. Please read https://github.com/fonttools/fonttools/issues/3014 to decide whether this makes sense for your font.
[code: bad-numberOfHMetrics]
Check if OS/2 xAvgCharWidth is correct.
Check if OS/2 fsSelection matches head macStyle bold and italic bits.
Checking unitsPerEm value is reasonable.
Does the font have a DSIG table?
Check glyphs in mark glyph class are non-spacing.
Check mark characters are in GDEF mark glyph class.
Check GDEF mark glyph class doesn't have characters that are not marks.
Does GPOS table have kerning information? This check skips monospaced fonts as defined by post.isFixedPitch value
Is there a usable "kern" table declared in the font?
Is there any unused data at the end of the glyf table?
Font follows the family naming recommendations?
MaxAdvanceWidth is consistent with values in the Hmtx and Hhea tables?
PostScript name follows OpenType specification requirements?
Check for points out of bounds.
Check glyphs do not have duplicate components which have the same x,y coordinates.
Check code page character ranges
Does the font have any invalid feature tags?
Does the font have any invalid script tags?
Does the font have any invalid language tags?
Checking post.italicAngle value.
Checking head.macStyle value.
Checking OS/2 fsSelection value.
Check name table IDs 1, 2, 16, 17 to conform to Italic style.
Validates that the value of axisNameID used by each VariationAxisRecord is greater than 255 and less than 32768.
Validates that the value of subfamilyNameID used by each InstanceRecord is 2, 17, or greater than 255 and less than 32768.
Validates that the value of postScriptNameID used by each InstanceRecord is 6, 0xFFFF, or greater than 255 and less than 32768.
Validates that when an instance record is included for the default instance, its subfamilyNameID value is set to a name ID whose string is equal to the string of either name ID 2 or 17, and its postScriptNameID value is set to a name ID whose string is equal to the string of name ID 6.
Validates that all of the instance records in a given font have the same size.
Validates that all of the instance records in a given font have distinct data.
Validate foundry-defined design-variation axis tag names.
Check that family axis ranges are indentical
STAT table has Axis Value tables?
Checking OS/2 achVendID against configuration.
Check hhea.caretSlopeRise and hhea.caretSlopeRun
Ensure VFs have 'ital' STAT axis.
Ensure 'ital' STAT axis is boolean value
Ensure 'ital' STAT axis is last.
Universal Profile Checks
🔥🔥🔥🔥⚠️⚠️⚠️⚠️⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩ℹ️ℹ️Check accent of Lcaron, dcaron, lcaron, tcaron
Check that glyph for U+0675 ARABIC LETTER HIGH HAMZA is not a mark.
Check that Arabic spacing symbols U+FBB2–FBC1 aren't classified as marks.
Ensure the font supports case swapping for all its glyphs.
🔥 FragmentMonoSC-Regular.ttf
-
🔥 FAIL
The following glyphs lack their case-swapping counterparts:
Glyph present in the font Missing case-swapping counterpart U+039E: GREEK CAPITAL LETTER XI U+03BE: GREEK SMALL LETTER XI
🔥 FragmentMonoSC-Italic.ttf
-
🔥 FAIL
The following glyphs lack their case-swapping counterparts:
Glyph present in the font Missing case-swapping counterpart U+039E: GREEK CAPITAL LETTER XI U+03BE: GREEK SMALL LETTER XI
Does the font contain chws and vchw features?
Check if each glyph has the recommended amount of contours.
⚠️ FragmentMonoSC-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:
[code: contour-count]- Glyph name: aogonek Contours detected: 3 Expected: 2 - Glyph name: eogonek 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: eogonek Contours detected: 3 Expected: 2 - Glyph name: uogonek Contours detected: 2 Expected: 1
⚠️ FragmentMonoSC-Italic.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:
[code: contour-count]- Glyph name: aogonek Contours detected: 3 Expected: 2 - Glyph name: eogonek 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: eogonek Contours detected: 3 Expected: 2 - Glyph name: uogonek Contours detected: 2 Expected: 1
Checking all files are in the same directory.
Each font in a family must have the same set of vertical metrics values.
Checking OS/2 usWinAscent & usWinDescent.
🔥 FragmentMonoSC-Regular.ttf
-
🔥 FAIL
OS/2.usWinAscent value should be equal or greater than 1022, but got 945 instead
[code: ascent] -
🔥 FAIL
OS/2.usWinDescent value should be equal or greater than 378, but got 265 instead
[code: descent]
🔥 FragmentMonoSC-Italic.ttf
-
🔥 FAIL
OS/2.usWinAscent value should be equal or greater than 1022, but got 945 instead
[code: ascent] -
🔥 FAIL
OS/2.usWinDescent value should be equal or greater than 378, but got 265 instead
[code: descent]
Do we have the latest version of FontBakery installed?
Ensure that the font can be rasterized by FreeType.
Ensure no GPOS7 lookups are present.
EXPERIMENTAL CHECK - Since 2024/Jun/10
Ensure 'smcp' (small caps) lookups are defined before ligature lookups in the 'GSUB' table.
Detect any interpolation issues in the font.
Check that legacy accents aren't used in composite glyphs.
Checking Vertical Metric Linegaps.
Font contains '.notdef' as its first glyph?
Check math signs have the same width.
Name table records must not have trailing spaces.
Checking OS/2 Metrics match hhea Metrics.
Checking with ots-sanitize.
Font contains all required tables?
Ensure indic fonts have the Indian Rupee Sign glyph.
Font has the proper sfntVersion value?
Does the font contain a soft hyphen?
Checking STAT table entries in static fonts.
Check correctness of STAT table strings
EXPERIMENTAL CHECK - Since 2024/Jun/04
Check tabular widths don't have kerning.
Ensure component transforms do not perform scaling or rotation.
EXPERIMENTAL CHECK - Since 2024/Jul/17
Checking that the typoAscender exceeds the yMax of the /Agrave.
Font contains unique glyph names?
Check font contains no unreachable glyphs
Are there unwanted tables?
Glyph names are all valid?
⚠️ FragmentMonoSC-Regular.ttf
-
⚠️ WARN
The following glyph names may be too long for some legacy systems which may expect a maximum 31-characters length limit: asciitilde_asciitilde_greater.liga, less_numbersign_hyphen_hyphen.liga and semicolon_semicolon_semicolon.liga
[code: legacy-long-names]
⚠️ FragmentMonoSC-Italic.ttf
-
⚠️ WARN
The following glyph names may be too long for some legacy systems which may expect a maximum 31-characters length limit: asciitilde_asciitilde_greater.liga, less_numbersign_hyphen_hyphen.liga and semicolon_semicolon_semicolon.liga
[code: legacy-long-names]
Font has **proper** whitespace glyph names?
Font contains glyphs for whitespace characters?
Whitespace glyphs have ink?
Space and non-breaking space have the same width?
Article Checks
⚠️⚠️Validate size, and resolution of article images, and ensure article page has minimum length and includes visual assets.
⚠️ FragmentMonoSC-Regular.ttf
-
⚠️ WARN
Family metadata at /home/runner/work/gf-dashboard/gf-dashboard/fonts/ofl/fragmentmonosc does not have an article.
[code: lacks-article]
⚠️ FragmentMonoSC-Italic.ttf
-
⚠️ WARN
Family metadata at /home/runner/work/gf-dashboard/gf-dashboard/fonts/ofl/fragmentmonosc does not have an article.
[code: lacks-article]
Metadata Checks
🔥🔥⚠️⚠️⚠️⚠️⏩⏩⏩⏩⏩⏩⏩⏩ℹ️ℹ️Does METADATA.pb copyright field contain broken links?
METADATA.pb: Font styles are named canonically?
METADATA.pb: Check that font weight has a canonical value.
Check samples can be rendered.
Ensure METADATA.pb category field is valid.
Check if category on METADATA.pb matches what can be inferred from the family name.
Validate VF axes match the ones declared on METADATA.pb.
METADATA.pb: Check URL on copyright string is the same as in repository_url field.
🔥 FragmentMonoSC-Regular.ttf
-
🔥 FAIL
Repository URL is https://github.com/weiweihuanghuang/fragment-mono
But: HTML description has 'github.com/twardoch/urw-core35-fonts'
[code: mismatch]
🔥 FragmentMonoSC-Italic.ttf
-
🔥 FAIL
Repository URL is https://github.com/weiweihuanghuang/fragment-mono
But: HTML description has 'github.com/twardoch/urw-core35-fonts'
[code: mismatch]
METADATA.pb: Copyright notice is the same in all fonts?
EXPERIMENTAL CHECK - Since 2024/May/22
Validate 'date_added' field on METADATA.pb.
METADATA.pb: Designers are listed correctly on the Google Fonts catalog?
⚠️ FragmentMonoSC-Regular.ttf
-
⚠️ WARN
It seems that URW Design Studio is still not listed on the designers catalog. Please submit a photo and a link to a webpage where people can learn more about the work of this designer/typefoundry.
[code: profile-not-found]
⚠️ FragmentMonoSC-Italic.ttf
-
⚠️ WARN
It seems that URW Design Studio is still not listed on the designers catalog. Please submit a photo and a link to a webpage where people can learn more about the work of this designer/typefoundry.
[code: profile-not-found]
Multiple values in font designer field in METADATA.pb must be separated by commas.
At least one designer is declared in METADATA.pb
Ensure METADATA.pb does not use escaped strings.
Check font family directory name.
Check that METADATA.pb family values are all the same.
METADATA.pb: Font filenames match font.filename entries?
Validate METADATA.pb axes values are within gf_axisregistry bounds.
Validate METADATA.pb axes tags are defined in gf_axisregistry.
Ensure there is a regular style defined in METADATA.pb.
Check METADATA.pb includes production subsets.
Check METADATA.pb file only contains a single CJK subset.
METADATA.pb license is "APACHE2", "UFL" or "OFL"?
METADATA.pb font.filename and font.post_script_name fields have equivalent values?
METADATA.pb font.full_name and font.post_script_name fields have equivalent values ?
METADATA.pb: Check font name is the same as family name.
METADATA.pb weight matches postScriptName for static fonts.
METADATA.pb should contain at least "menu" and "latin" subsets.
METADATA.pb: Validate family.minisite_url field.
METADATA.pb font.name and font.full_name fields match the values declared on the name table?
METADATA.pb font.name value should be same as the family name declared on the name table.
Checks METADATA.pb font.post_script_name matches postscript name declared on the name table.
Check METADATA.pb font weights are correct.
Check METADATA.pb parse correctly.
METADATA.pb: Check for primary_script
METADATA.pb: Regular should be 400.
Copyright notice on METADATA.pb should not contain 'Reserved Font Name'.
METADATA.pb subsets should be alphabetically ordered.
Ensure METADATA.pb lists all font binaries.
METADATA.pb: check if fonts field only has unique "full_name" values.
METADATA.pb: check if fonts field only contains unique style:weight pairs.
Check for codepoints not covered by METADATA subsets.
⚠️ FragmentMonoSC-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, yi, canadian-aboriginal
- U+02D8 BREVE: try adding one of: yi, canadian-aboriginal
- U+02D9 DOT ABOVE: try adding one of: yi, canadian-aboriginal
- U+02DB OGONEK: try adding one of: yi, canadian-aboriginal
- U+02DD DOUBLE ACUTE ACCENT: not included in any glyphset definition
- U+0302 COMBINING CIRCUMFLEX ACCENT: try adding one of: math, cherokee, tifinagh, coptic
- U+0306 COMBINING BREVE: try adding one of: tifinagh, old-permic
- U+0307 COMBINING DOT ABOVE: try adding one of: syriac, math, tai-le, old-permic, tifinagh, coptic, malayalam, canadian-aboriginal
- U+030A COMBINING RING ABOVE: try adding syriac
- U+030B COMBINING DOUBLE ACUTE ACCENT: try adding one of: cherokee, osage
- U+030C COMBINING CARON: try adding one of: tai-le, cherokee
- U+0312 COMBINING TURNED COMMA ABOVE: not included in any glyphset definition
- 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+039E GREEK CAPITAL LETTER XI: try adding one of: elbasan, math, greek
- U+03A9 GREEK CAPITAL LETTER OMEGA: try adding one of: elbasan, math, greek
- U+03C0 GREEK SMALL LETTER PI: try adding one of: math, yi, greek
- U+0E3F THAI CURRENCY SYMBOL BAHT: try adding thai
- U+2011 NON-BREAKING HYPHEN: try adding one of: arabic, syloti-nagri, yi
- U+2015 HORIZONTAL BAR: try adding adlam
- U+2016 DOUBLE VERTICAL LINE: not included in any glyphset definition
- U+2017 DOUBLE LOW LINE: not included in any glyphset definition
- U+201B SINGLE HIGH-REVERSED-9 QUOTATION MARK: try adding adlam
- U+2021 DOUBLE DAGGER: try adding adlam
- U+2030 PER MILLE SIGN: try adding adlam
- U+203C DOUBLE EXCLAMATION MARK: not included in any glyphset definition
- U+203E OVERLINE: not included in any glyphset definition
- U+2070 SUPERSCRIPT ZERO: not included in any glyphset definition
- U+2075 SUPERSCRIPT FIVE: not included in any glyphset definition
- U+2076 SUPERSCRIPT SIX: not included in any glyphset definition
- U+2077 SUPERSCRIPT SEVEN: not included in any glyphset definition
- U+2078 SUPERSCRIPT EIGHT: not included in any glyphset definition
- U+2079 SUPERSCRIPT NINE: not included in any glyphset definition
- U+2080 SUBSCRIPT ZERO: not included in any glyphset definition
- U+2081 SUBSCRIPT ONE: not included in any glyphset definition
- U+2082 SUBSCRIPT TWO: not included in any glyphset definition
- U+2083 SUBSCRIPT THREE: not included in any glyphset definition
- U+2084 SUBSCRIPT FOUR: not included in any glyphset definition
- U+2085 SUBSCRIPT FIVE: not included in any glyphset definition
- U+2086 SUBSCRIPT SIX: not included in any glyphset definition
- U+2087 SUBSCRIPT SEVEN: not included in any glyphset definition
- U+2088 SUBSCRIPT EIGHT: not included in any glyphset definition
- U+2089 SUBSCRIPT NINE: not included in any glyphset definition
- U+2117 SOUND RECORDING COPYRIGHT: not included in any glyphset definition
- U+2126 OHM SIGN: not included in any glyphset definition
- U+212E ESTIMATED SYMBOL: not included in any glyphset definition
- U+2153 VULGAR FRACTION ONE THIRD: not included in any glyphset definition
- U+2154 VULGAR FRACTION TWO THIRDS: not included in any glyphset definition
- U+215B VULGAR FRACTION ONE EIGHTH: not included in any glyphset definition
- U+215C VULGAR FRACTION THREE EIGHTHS: not included in any glyphset definition
- U+215D VULGAR FRACTION FIVE EIGHTHS: not included in any glyphset definition
- U+215E VULGAR FRACTION SEVEN EIGHTHS: not included in any glyphset definition
- U+2190 LEFTWARDS ARROW: try adding one of: symbols, math
- U+2192 RIGHTWARDS ARROW: try adding one of: symbols, math
- U+2194 LEFT RIGHT ARROW: try adding one of: symbols, math
- U+2195 UP DOWN ARROW: try adding one of: symbols, math
- U+2196 NORTH WEST ARROW: try adding one of: symbols, math
- U+2197 NORTH EAST ARROW: try adding one of: symbols, math
- U+2198 SOUTH EAST ARROW: try adding one of: symbols, math
- U+2199 SOUTH WEST ARROW: try adding one of: symbols, math
- U+21A9 LEFTWARDS ARROW WITH HOOK: try adding math
- U+21AA RIGHTWARDS ARROW WITH HOOK: try adding math
- U+21B0 UPWARDS ARROW WITH TIP LEFTWARDS: try adding math
- U+21B1 UPWARDS ARROW WITH TIP RIGHTWARDS: try adding math
- U+21B2 DOWNWARDS ARROW WITH TIP LEFTWARDS: try adding math
- U+21B3 DOWNWARDS ARROW WITH TIP RIGHTWARDS: try adding math
- U+21BA ANTICLOCKWISE OPEN CIRCLE ARROW: try adding math
- U+21BB CLOCKWISE OPEN CIRCLE ARROW: try adding math
- U+21C6 LEFTWARDS ARROW OVER RIGHTWARDS ARROW: try adding math
- U+2202 PARTIAL DIFFERENTIAL: try adding math
- U+2205 EMPTY SET: try adding math
- U+2206 INCREMENT: try adding math
- U+220F N-ARY PRODUCT: try adding math
- U+2211 N-ARY SUMMATION: try adding math
- U+2219 BULLET OPERATOR: try adding one of: symbols, math, yi, tai-tham
- U+221A SQUARE ROOT: try adding math
- U+221E INFINITY: try adding math
- U+222B INTEGRAL: try adding math
- U+2248 ALMOST EQUAL TO: try adding math
- U+2260 NOT EQUAL TO: try adding math
- U+2264 LESS-THAN OR EQUAL TO: try adding math
- U+2265 GREATER-THAN OR EQUAL TO: try adding math
- U+2329 LEFT-POINTING ANGLE BRACKET: try adding symbols
- U+232A RIGHT-POINTING ANGLE BRACKET: try adding symbols
- U+2398 NEXT PAGE: try adding symbols
- U+2500 BOX DRAWINGS LIGHT HORIZONTAL: not included in any glyphset definition
- U+2502 BOX DRAWINGS LIGHT VERTICAL: not included in any glyphset definition
- U+250C BOX DRAWINGS LIGHT DOWN AND RIGHT: not included in any glyphset definition
- U+2510 BOX DRAWINGS LIGHT DOWN AND LEFT: not included in any glyphset definition
- U+2514 BOX DRAWINGS LIGHT UP AND RIGHT: not included in any glyphset definition
- U+2518 BOX DRAWINGS LIGHT UP AND LEFT: not included in any glyphset definition
- U+251C BOX DRAWINGS LIGHT VERTICAL AND RIGHT: not included in any glyphset definition
- U+2524 BOX DRAWINGS LIGHT VERTICAL AND LEFT: not included in any glyphset definition
- U+252C BOX DRAWINGS LIGHT DOWN AND HORIZONTAL: not included in any glyphset definition
- U+2534 BOX DRAWINGS LIGHT UP AND HORIZONTAL: not included in any glyphset definition
- U+253C BOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL: not included in any glyphset definition
- U+256D BOX DRAWINGS LIGHT ARC DOWN AND RIGHT: not included in any glyphset definition
- U+256E BOX DRAWINGS LIGHT ARC DOWN AND LEFT: not included in any glyphset definition
- U+256F BOX DRAWINGS LIGHT ARC UP AND LEFT: not included in any glyphset definition
- U+2570 BOX DRAWINGS LIGHT ARC UP AND RIGHT: not included in any glyphset definition
- U+2571 BOX DRAWINGS LIGHT DIAGONAL UPPER RIGHT TO LOWER LEFT: not included in any glyphset definition
- U+2572 BOX DRAWINGS LIGHT DIAGONAL UPPER LEFT TO LOWER RIGHT: not included in any glyphset definition
- U+2573 BOX DRAWINGS LIGHT DIAGONAL CROSS: not included in any glyphset definition
- U+2574 BOX DRAWINGS LIGHT LEFT: not included in any glyphset definition
- U+2575 BOX DRAWINGS LIGHT UP: not included in any glyphset definition
- U+2576 BOX DRAWINGS LIGHT RIGHT: not included in any glyphset definition
- U+2577 BOX DRAWINGS LIGHT DOWN: not included in any glyphset definition
- U+25A0 BLACK SQUARE: try adding symbols
- U+25A1 WHITE SQUARE: try adding symbols
- U+25AA BLACK SMALL SQUARE: try adding symbols
- U+25AB WHITE SMALL SQUARE: try adding symbols
- U+25B2 BLACK UP-POINTING TRIANGLE: try adding symbols
- U+25B3 WHITE UP-POINTING TRIANGLE: try adding one of: symbols, math
- U+25B4 BLACK UP-POINTING SMALL TRIANGLE: try adding symbols
- U+25B5 WHITE UP-POINTING SMALL TRIANGLE: try adding symbols
- U+25B6 BLACK RIGHT-POINTING TRIANGLE: try adding symbols
- U+25B7 WHITE RIGHT-POINTING TRIANGLE: try adding one of: symbols, math
- U+25B8 BLACK RIGHT-POINTING SMALL TRIANGLE: try adding symbols
- U+25B9 WHITE RIGHT-POINTING SMALL TRIANGLE: try adding symbols
- U+25BC BLACK DOWN-POINTING TRIANGLE: try adding symbols
- U+25BD WHITE DOWN-POINTING TRIANGLE: try adding one of: symbols, math
- U+25BE BLACK DOWN-POINTING SMALL TRIANGLE: try adding symbols
- U+25BF WHITE DOWN-POINTING SMALL TRIANGLE: try adding symbols
- U+25C0 BLACK LEFT-POINTING TRIANGLE: try adding symbols
- U+25C1 WHITE LEFT-POINTING TRIANGLE: try adding one of: symbols, math
- U+25C2 BLACK LEFT-POINTING SMALL TRIANGLE: try adding symbols
- U+25C3 WHITE LEFT-POINTING SMALL TRIANGLE: try adding symbols
- U+25C6 BLACK DIAMOND: try adding symbols
- U+25C7 WHITE DIAMOND: try adding symbols
- U+25CA LOZENGE: try adding one of: symbols, math
- U+25CB WHITE CIRCLE: try adding symbols
- U+25CE BULLSEYE: try adding symbols
- U+25CF BLACK CIRCLE: try adding symbols
- U+25E6 WHITE BULLET: try adding symbols
- U+2630 TRIGRAM FOR HEAVEN: try adding symbols
- U+2713 CHECK MARK: try adding symbols
- U+2717 BALLOT X: try adding symbols
- U+27E8 MATHEMATICAL LEFT ANGLE BRACKET: try adding math
- U+27E9 MATHEMATICAL RIGHT ANGLE BRACKET: try adding math
- U+301A LEFT WHITE SQUARE BRACKET: try adding one of: chinese-hongkong, yi, chinese-traditional, japanese, chinese-simplified, phags-pa
- U+301B RIGHT WHITE SQUARE BRACKET: try adding one of: chinese-hongkong, yi, chinese-traditional, japanese, chinese-simplified, phags-pa
- U+E000 : not included in any glyphset definition
- U+E001 : not included in any glyphset definition
- U+F8FF : not included in any glyphset definition
- U+1F4C4 PAGE FACING UP: not included in any glyphset definition
- U+1F517 LINK SYMBOL: not included in any glyphset definition
Or you can add the above codepoints to one of the subsets supported by the font:
[code: unreachable-subsetting]cyrillic-ext
,latin
,latin-ext
,menu
⚠️ FragmentMonoSC-Italic.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, yi, canadian-aboriginal
- U+02D8 BREVE: try adding one of: yi, canadian-aboriginal
- U+02D9 DOT ABOVE: try adding one of: yi, canadian-aboriginal
- U+02DB OGONEK: try adding one of: yi, canadian-aboriginal
- U+02DD DOUBLE ACUTE ACCENT: not included in any glyphset definition
- U+0302 COMBINING CIRCUMFLEX ACCENT: try adding one of: math, cherokee, tifinagh, coptic
- U+0306 COMBINING BREVE: try adding one of: tifinagh, old-permic
- U+0307 COMBINING DOT ABOVE: try adding one of: syriac, math, tai-le, old-permic, tifinagh, coptic, malayalam, canadian-aboriginal
- U+030A COMBINING RING ABOVE: try adding syriac
- U+030B COMBINING DOUBLE ACUTE ACCENT: try adding one of: cherokee, osage
- U+030C COMBINING CARON: try adding one of: tai-le, cherokee
- U+0312 COMBINING TURNED COMMA ABOVE: not included in any glyphset definition
- 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+039E GREEK CAPITAL LETTER XI: try adding one of: elbasan, math, greek
- U+03A9 GREEK CAPITAL LETTER OMEGA: try adding one of: elbasan, math, greek
- U+03C0 GREEK SMALL LETTER PI: try adding one of: math, yi, greek
- U+0E3F THAI CURRENCY SYMBOL BAHT: try adding thai
- U+2011 NON-BREAKING HYPHEN: try adding one of: arabic, syloti-nagri, yi
- U+2015 HORIZONTAL BAR: try adding adlam
- U+2016 DOUBLE VERTICAL LINE: not included in any glyphset definition
- U+2017 DOUBLE LOW LINE: not included in any glyphset definition
- U+201B SINGLE HIGH-REVERSED-9 QUOTATION MARK: try adding adlam
- U+2021 DOUBLE DAGGER: try adding adlam
- U+2030 PER MILLE SIGN: try adding adlam
- U+203C DOUBLE EXCLAMATION MARK: not included in any glyphset definition
- U+203E OVERLINE: not included in any glyphset definition
- U+2070 SUPERSCRIPT ZERO: not included in any glyphset definition
- U+2075 SUPERSCRIPT FIVE: not included in any glyphset definition
- U+2076 SUPERSCRIPT SIX: not included in any glyphset definition
- U+2077 SUPERSCRIPT SEVEN: not included in any glyphset definition
- U+2078 SUPERSCRIPT EIGHT: not included in any glyphset definition
- U+2079 SUPERSCRIPT NINE: not included in any glyphset definition
- U+2080 SUBSCRIPT ZERO: not included in any glyphset definition
- U+2081 SUBSCRIPT ONE: not included in any glyphset definition
- U+2082 SUBSCRIPT TWO: not included in any glyphset definition
- U+2083 SUBSCRIPT THREE: not included in any glyphset definition
- U+2084 SUBSCRIPT FOUR: not included in any glyphset definition
- U+2085 SUBSCRIPT FIVE: not included in any glyphset definition
- U+2086 SUBSCRIPT SIX: not included in any glyphset definition
- U+2087 SUBSCRIPT SEVEN: not included in any glyphset definition
- U+2088 SUBSCRIPT EIGHT: not included in any glyphset definition
- U+2089 SUBSCRIPT NINE: not included in any glyphset definition
- U+2117 SOUND RECORDING COPYRIGHT: not included in any glyphset definition
- U+2126 OHM SIGN: not included in any glyphset definition
- U+212E ESTIMATED SYMBOL: not included in any glyphset definition
- U+2153 VULGAR FRACTION ONE THIRD: not included in any glyphset definition
- U+2154 VULGAR FRACTION TWO THIRDS: not included in any glyphset definition
- U+215B VULGAR FRACTION ONE EIGHTH: not included in any glyphset definition
- U+215C VULGAR FRACTION THREE EIGHTHS: not included in any glyphset definition
- U+215D VULGAR FRACTION FIVE EIGHTHS: not included in any glyphset definition
- U+215E VULGAR FRACTION SEVEN EIGHTHS: not included in any glyphset definition
- U+2190 LEFTWARDS ARROW: try adding one of: symbols, math
- U+2192 RIGHTWARDS ARROW: try adding one of: symbols, math
- U+2194 LEFT RIGHT ARROW: try adding one of: symbols, math
- U+2195 UP DOWN ARROW: try adding one of: symbols, math
- U+2196 NORTH WEST ARROW: try adding one of: symbols, math
- U+2197 NORTH EAST ARROW: try adding one of: symbols, math
- U+2198 SOUTH EAST ARROW: try adding one of: symbols, math
- U+2199 SOUTH WEST ARROW: try adding one of: symbols, math
- U+21A9 LEFTWARDS ARROW WITH HOOK: try adding math
- U+21AA RIGHTWARDS ARROW WITH HOOK: try adding math
- U+21B0 UPWARDS ARROW WITH TIP LEFTWARDS: try adding math
- U+21B1 UPWARDS ARROW WITH TIP RIGHTWARDS: try adding math
- U+21B2 DOWNWARDS ARROW WITH TIP LEFTWARDS: try adding math
- U+21B3 DOWNWARDS ARROW WITH TIP RIGHTWARDS: try adding math
- U+21BA ANTICLOCKWISE OPEN CIRCLE ARROW: try adding math
- U+21BB CLOCKWISE OPEN CIRCLE ARROW: try adding math
- U+21C6 LEFTWARDS ARROW OVER RIGHTWARDS ARROW: try adding math
- U+2202 PARTIAL DIFFERENTIAL: try adding math
- U+2205 EMPTY SET: try adding math
- U+2206 INCREMENT: try adding math
- U+220F N-ARY PRODUCT: try adding math
- U+2211 N-ARY SUMMATION: try adding math
- U+2219 BULLET OPERATOR: try adding one of: symbols, math, yi, tai-tham
- U+221A SQUARE ROOT: try adding math
- U+221E INFINITY: try adding math
- U+222B INTEGRAL: try adding math
- U+2248 ALMOST EQUAL TO: try adding math
- U+2260 NOT EQUAL TO: try adding math
- U+2264 LESS-THAN OR EQUAL TO: try adding math
- U+2265 GREATER-THAN OR EQUAL TO: try adding math
- U+2329 LEFT-POINTING ANGLE BRACKET: try adding symbols
- U+232A RIGHT-POINTING ANGLE BRACKET: try adding symbols
- U+2398 NEXT PAGE: try adding symbols
- U+2500 BOX DRAWINGS LIGHT HORIZONTAL: not included in any glyphset definition
- U+2502 BOX DRAWINGS LIGHT VERTICAL: not included in any glyphset definition
- U+250C BOX DRAWINGS LIGHT DOWN AND RIGHT: not included in any glyphset definition
- U+2510 BOX DRAWINGS LIGHT DOWN AND LEFT: not included in any glyphset definition
- U+2514 BOX DRAWINGS LIGHT UP AND RIGHT: not included in any glyphset definition
- U+2518 BOX DRAWINGS LIGHT UP AND LEFT: not included in any glyphset definition
- U+251C BOX DRAWINGS LIGHT VERTICAL AND RIGHT: not included in any glyphset definition
- U+2524 BOX DRAWINGS LIGHT VERTICAL AND LEFT: not included in any glyphset definition
- U+252C BOX DRAWINGS LIGHT DOWN AND HORIZONTAL: not included in any glyphset definition
- U+2534 BOX DRAWINGS LIGHT UP AND HORIZONTAL: not included in any glyphset definition
- U+253C BOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL: not included in any glyphset definition
- U+256D BOX DRAWINGS LIGHT ARC DOWN AND RIGHT: not included in any glyphset definition
- U+256E BOX DRAWINGS LIGHT ARC DOWN AND LEFT: not included in any glyphset definition
- U+256F BOX DRAWINGS LIGHT ARC UP AND LEFT: not included in any glyphset definition
- U+2570 BOX DRAWINGS LIGHT ARC UP AND RIGHT: not included in any glyphset definition
- U+2571 BOX DRAWINGS LIGHT DIAGONAL UPPER RIGHT TO LOWER LEFT: not included in any glyphset definition
- U+2572 BOX DRAWINGS LIGHT DIAGONAL UPPER LEFT TO LOWER RIGHT: not included in any glyphset definition
- U+2573 BOX DRAWINGS LIGHT DIAGONAL CROSS: not included in any glyphset definition
- U+2574 BOX DRAWINGS LIGHT LEFT: not included in any glyphset definition
- U+2575 BOX DRAWINGS LIGHT UP: not included in any glyphset definition
- U+2576 BOX DRAWINGS LIGHT RIGHT: not included in any glyphset definition
- U+2577 BOX DRAWINGS LIGHT DOWN: not included in any glyphset definition
- U+25A0 BLACK SQUARE: try adding symbols
- U+25A1 WHITE SQUARE: try adding symbols
- U+25AA BLACK SMALL SQUARE: try adding symbols
- U+25AB WHITE SMALL SQUARE: try adding symbols
- U+25B2 BLACK UP-POINTING TRIANGLE: try adding symbols
- U+25B3 WHITE UP-POINTING TRIANGLE: try adding one of: symbols, math
- U+25B4 BLACK UP-POINTING SMALL TRIANGLE: try adding symbols
- U+25B5 WHITE UP-POINTING SMALL TRIANGLE: try adding symbols
- U+25B6 BLACK RIGHT-POINTING TRIANGLE: try adding symbols
- U+25B7 WHITE RIGHT-POINTING TRIANGLE: try adding one of: symbols, math
- U+25B8 BLACK RIGHT-POINTING SMALL TRIANGLE: try adding symbols
- U+25B9 WHITE RIGHT-POINTING SMALL TRIANGLE: try adding symbols
- U+25BC BLACK DOWN-POINTING TRIANGLE: try adding symbols
- U+25BD WHITE DOWN-POINTING TRIANGLE: try adding one of: symbols, math
- U+25BE BLACK DOWN-POINTING SMALL TRIANGLE: try adding symbols
- U+25BF WHITE DOWN-POINTING SMALL TRIANGLE: try adding symbols
- U+25C0 BLACK LEFT-POINTING TRIANGLE: try adding symbols
- U+25C1 WHITE LEFT-POINTING TRIANGLE: try adding one of: symbols, math
- U+25C2 BLACK LEFT-POINTING SMALL TRIANGLE: try adding symbols
- U+25C3 WHITE LEFT-POINTING SMALL TRIANGLE: try adding symbols
- U+25C6 BLACK DIAMOND: try adding symbols
- U+25C7 WHITE DIAMOND: try adding symbols
- U+25CA LOZENGE: try adding one of: symbols, math
- U+25CB WHITE CIRCLE: try adding symbols
- U+25CE BULLSEYE: try adding symbols
- U+25CF BLACK CIRCLE: try adding symbols
- U+25E6 WHITE BULLET: try adding symbols
- U+2630 TRIGRAM FOR HEAVEN: try adding symbols
- U+2713 CHECK MARK: try adding symbols
- U+2717 BALLOT X: try adding symbols
- U+27E8 MATHEMATICAL LEFT ANGLE BRACKET: try adding math
- U+27E9 MATHEMATICAL RIGHT ANGLE BRACKET: try adding math
- U+301A LEFT WHITE SQUARE BRACKET: try adding one of: chinese-hongkong, yi, chinese-traditional, japanese, chinese-simplified, phags-pa
- U+301B RIGHT WHITE SQUARE BRACKET: try adding one of: chinese-hongkong, yi, chinese-traditional, japanese, chinese-simplified, phags-pa
- U+E000 : not included in any glyphset definition
- U+E001 : not included in any glyphset definition
- U+F8FF : not included in any glyphset definition
- U+1F4C4 PAGE FACING UP: not included in any glyphset definition
- U+1F517 LINK SYMBOL: not included in any glyphset definition
Or you can add the above codepoints to one of the subsets supported by the font:
[code: unreachable-subsetting]cyrillic-ext
,latin
,latin-ext
,menu
Check for METADATA subsets with zero support.
METADATA.pb font.filename field contains font name in right format?
METADATA.pb font.full_name field contains font name in right format?
Check name ID 25 to end with "Italic" for Italic VFs.
METADATA.pb font.post_script_name field contains font name in right format?
Glyphset Checks
🔥🔥Shapes languages in all GF glyphsets.
🔥 FragmentMonoSC-Regular.ttf
-
🔥 FAIL
GF_Latin_Core glyphset:
Language FAIL messages nl_Latn (Dutch) Shaper didn't attach acutecomb to uni0237.sc ^ Shaper didn't attach acutecomb to J
🔥 FragmentMonoSC-Italic.ttf
-
🔥 FAIL
GF_Latin_Core glyphset:
Language FAIL messages nl_Latn (Dutch) Shaper didn't attach acutecomb to uni0237.sc ^ Shaper didn't attach acutecomb to J
Description Checks
🔥⚠️⚠️⚠️ℹ️ℹ️ℹ️ℹ️Does DESCRIPTION file contain broken links?
DESCRIPTION.en_us.html should end in a linebreak.
⚠️ METADATA.pb
-
⚠️ WARN
The last characther on DESCRIPTION.en_us.html is not a line-break. Please add it.
[code: missing-eof-linebreak]
On a family update, the DESCRIPTION.en_us.html file should ideally also be updated.
⚠️ FragmentMonoSC-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]
⚠️ FragmentMonoSC-Italic.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]
Does DESCRIPTION file contain a upstream Git repo URL?
Check the description doesn't contain unsupported html elements
DESCRIPTION.en_us.html must have more than 200 bytes.
🔥 METADATA.pb
-
🔥 FAIL
DESCRIPTION.en_us.html must have size larger than 200 bytes.
[code: too-short]
Check for presence of an ARTICLE.en_us.html file
URLs on DESCRIPTION file must not display http(s) prefix.
Is this a proper HTML snippet?
Shaping Checks
⚠️⚠️⏩⏩⏩⏩⏩⏩Check that texts shape as per expectation
Check that no forbidden glyphs are found while shaping
Check that no collisions are found while shaping
Ensure dotted circle glyph is present and can attach marks.
⚠️ FragmentMonoSC-Regular.ttf
-
⚠️ WARN
No dotted circle glyph present
[code: missing-dotted-circle]
⚠️ FragmentMonoSC-Italic.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.
Font File Checks
⚠️⚠️⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩ℹ️ℹ️ℹ️ℹ️ℹ️ℹ️ℹ️Are there unwanted Apple tables?
Checking file is named canonically.
Does the font contain less than 150 CJK characters?
Check font follows the Google Fonts CJK vertical metric schema
Check if the vertical metrics of a CJK family are similar to the same family hosted on Google Fonts.
Color layers should have a minimum brightness
Check font has the expected color font tables.
Put an empty glyph on GID 1 right after the .notdef glyph for COLRv0 fonts.
EPAR table present in font?
Ensure files are not too large.
Copyright notices match canonical pattern in fonts
Check font names are correct
Checking OS/2 fsType does not impose restrictions.
Check variable font instances
All name entries referenced by fvar instances exist on the name table?
Is the Grid-fitting and Scan-conversion Procedure ('gasp') table set to optimize rendering?
Validate defaults on fvar table match registered fallback names in GFAxisRegistry.
Check glyphs do not have components which are themselves components.
Check Google Fonts glyph coverage.
Font has ttfautohint params?
Show hinting filesize impact.
PPEM must be an integer on hinted fonts.
Is there kerning info for non-ligated sequences?
Are there caret positions declared for every ligature?
Ensure variable fonts include an avar table.
Ensure fonts have ScriptLangTags declared on the 'meta' table.
⚠️ FragmentMonoSC-Regular.ttf
-
⚠️ WARN
This font file does not have a 'meta' table.
[code: lacks-meta-table]
⚠️ FragmentMonoSC-Italic.ttf
-
⚠️ WARN
This font file does not have a 'meta' table.
[code: lacks-meta-table]