Font Bakery Logo image/svg+xml Font Bakery Logo Robert Martinez font build service https://github.com/xen/fontbakery
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 ☠ FATAL 🔥 FAIL ⚠️ WARN ⏩ SKIP ℹ️ INFO ✅ PASS
0 0 5 11 95 9 131
0% 0% 2% 4% 38% 4% 52%

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: 0.12.10

OpenType Specification Checks

🔥⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩

Fonts have consistent underline thickness?

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

Fonts have consistent PANOSE family type?

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

Make sure all font files have the same version value.

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

Check that OS/2.fsSelection bold & italic settings are unique for each NameID1

Check ID: <FontBakeryCheck:com.adobe.fonts/check/family/bold_italic_unique_for_nameid1>

Verify that each group of fonts with the same nameID 1 has maximum of 4 fonts.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/family/max_4_fonts_per_family_name>

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)

Check ID: <FontBakeryCheck:com.adobe.fonts/check/family/consistent_family_name>

CFF table FontName must match name table ID 6 (PostScript name).

Check ID: <FontBakeryCheck:com.adobe.fonts/check/name/postscript_vs_cff>

Name table ID 6 (PostScript name) must be consistent across platforms.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/name/postscript_name_consistency>

Check name table for empty records.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/name/empty_records>

Description strings in the name table must not contain copyright info.

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

Does full font name begin with the font family name?

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

The variable font 'wght' (Weight) axis coordinate must be 400 on the 'Regular' instance.

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

The variable font 'wdth' (Width) axis coordinate must be 100 on the 'Regular' instance.

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

The variable font 'slnt' (Slant) axis coordinate must be zero on the 'Regular' instance.

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

The variable font 'ital' (Italic) axis coordinate must be zero on the 'Regular' instance.

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

The variable font 'opsz' (Optical Size) axis coordinate should be between 10 and 16 on the 'Regular' instance.

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

The variable font 'slnt' (Slant) axis coordinate specifies positive values in its range?

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

The variable font 'ital' (Italic) axis coordinates is in a valid range?

Check ID: <FontBakeryCheck:com.typenetwork/check/varfont/ital_range>

The variable font 'wght' (Weight) axis coordinate must be within spec range of 1 to 1000 on all instances.

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

The variable font 'wdth' (Width) axis coordinate must strictly greater than zero.

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

All fvar axes have a correspondent Axis Record on STAT table?

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

Does the number of glyphs in the loca table match the maxp table?

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

EXPERIMENTAL CHECK - Since 2024/Jun/20
Does the font's CFF table top dict strings fit into the ASCII range?

Check ID: <FontBakeryCheck:com.adobe.fonts/check/cff_ascii_strings>

Is the CFF subr/gsubr call depth > 10?

Check ID: <FontBakeryCheck:com.adobe.fonts/check/cff_call_depth>

Does the font use deprecated CFF operators or operations?

Check ID: <FontBakeryCheck:com.adobe.fonts/check/cff_deprecated_operators>

Is the CFF2 subr/gsubr call depth > 10?

Check ID: <FontBakeryCheck:com.adobe.fonts/check/cff2_call_depth>

Checking font version fields (head and name table).

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

Font has correct post table version?

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

Checking correctness of monospaced metadata.

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

Check if OS/2 xAvgCharWidth is correct.

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

Check if OS/2 fsSelection matches head macStyle bold and italic bits.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/fsselection_matches_macstyle>

Checking unitsPerEm value is reasonable.

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

Does the font have a DSIG table?

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

Check glyphs in mark glyph class are non-spacing.

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

Check mark characters are in GDEF mark glyph class.

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

Check GDEF mark glyph class doesn't have characters that are not marks.

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

Does GPOS table have kerning information? This check skips monospaced fonts as defined by post.isFixedPitch value

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

Is there a usable "kern" table declared in the font?

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

Is there any unused data at the end of the glyf table?

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

Font follows the family naming recommendations?

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

MaxAdvanceWidth is consistent with values in the Hmtx and Hhea tables?

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

PostScript name follows OpenType specification requirements?

Check ID: <FontBakeryCheck:com.adobe.fonts/check/postscript_name>

Check for points out of bounds.

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

Check glyphs do not have duplicate components which have the same x,y coordinates.

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

Check code page character ranges

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

Does the font have any invalid feature tags?

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

Does the font have any invalid script tags?

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

Does the font have any invalid language tags?

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

Checking post.italicAngle value.

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

Checking head.macStyle value.

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

Checking OS/2 fsSelection value.

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

Check name table IDs 1, 2, 16, 17 to conform to Italic style.

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

Validates that the value of axisNameID used by each VariationAxisRecord is greater than 255 and less than 32768.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/varfont/valid_axis_nameid>

Validates that the value of subfamilyNameID used by each InstanceRecord is 2, 17, or greater than 255 and less than 32768.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/varfont/valid_subfamily_nameid>

Validates that the value of postScriptNameID used by each InstanceRecord is 6, 0xFFFF, or greater than 255 and less than 32768.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/varfont/valid_postscript_nameid>

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.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/varfont/valid_default_instance_nameids>
🔥 Libertine-Super[wght].ttf
  • 🔥 FAIL

    'Thin' instance has the same coordinates as the default instance; its postscript name should be 'LibertineSup-VF', instead of 'LibertineSup-Thin'.

    [code: invalid-default-instance-postscript-name]

Validates that all of the instance records in a given font have the same size.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/varfont/same_size_instance_records>

Validates that all of the instance records in a given font have distinct data.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/varfont/distinct_instance_records>

Validate foundry-defined design-variation axis tag names.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/varfont/foundry_defined_tag_name>

Check that family axis ranges are indentical

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

STAT table has Axis Value tables?

Check ID: <FontBakeryCheck:com.adobe.fonts/check/stat_has_axis_value_tables>

Checking OS/2 achVendID against configuration.

Check ID: <FontBakeryCheck:com.thetypefounders/check/vendor_id>

Check hhea.caretSlopeRise and hhea.caretSlopeRun

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

Ensure VFs have 'ital' STAT axis.

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

Ensure 'ital' STAT axis is boolean value

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

Ensure 'ital' STAT axis is last.

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

Universal Profile Checks

⚠️⚠️⚠️⏩⏩⏩⏩⏩⏩ℹ️

Check accent of Lcaron, dcaron, lcaron, tcaron

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

Check that glyph for U+0675 ARABIC LETTER HIGH HAMZA is not a mark.

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

Check that Arabic spacing symbols U+FBB2–FBC1 aren't classified as marks.

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

Ensure the font supports case swapping for all its glyphs.

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

Does the font contain chws and vchw features?

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

Check if each glyph has the recommended amount of contours.

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

Checking all files are in the same directory.

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

Each font in a family must have the same set of vertical metrics values.

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

Checking OS/2 usWinAscent & usWinDescent.

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

Do we have the latest version of FontBakery installed?

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

Ensure that the font can be rasterized by FreeType.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/freetype_rasterizer>

Ensure no GPOS7 lookups are present.

Check ID: <FontBakeryCheck:com.google.fonts/check/gpos7>

EXPERIMENTAL CHECK - Since 2024/Jun/10
Ensure 'smcp' (small caps) lookups are defined before ligature lookups in the 'GSUB' table.

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

Detect any interpolation issues in the font.

Check ID: <FontBakeryCheck:com.google.fonts/check/interpolation_issues>
⚠️ Libertine-Super[wght].ttf
  • ⚠️ WARN

    Interpolation issues were found in the font:

    - Contour 0 point 30 in glyph 'd.blackCircled.ss01' has a kink between location wght=100 and location wght=900

- Contour 0 point 44 in glyph 'a.blackCircled' has a kink between location wght=100 and location wght=900

- Contour 0 point 11 in glyph 'm.blackCircled' has a kink between location wght=100 and location wght=900

- Contour 0 point 11 in glyph 'n.blackCircled' has a kink between location wght=100 and location wght=900

- Contour 0 point 11 in glyph 'r.blackCircled.ss01' has a kink between location wght=100 and location wght=900

- Contour 0 point 31 in glyph 'u.blackCircled' has a kink between location wght=100 and location wght=900

- Contour 0 point 50 in glyph 'a.blackCircled.ss01' has a kink between location wght=100 and location wght=900

- Contour 0 point 11 in glyph 'p.blackCircled.ss01' has a kink between location wght=100 and location wght=900
    [code: interpolation-issues]

Check that legacy accents aren't used in composite glyphs.

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

Checking Vertical Metric Linegaps.

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

Font contains '.notdef' as its first glyph?

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

Check math signs have the same width.

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

Name table records must not have trailing spaces.

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

Checking OS/2 Metrics match hhea Metrics.

Check ID: <FontBakeryCheck:com.google.fonts/check/os2_metrics_match_hhea>

Checking with ots-sanitize.

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

Font contains all required tables?

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

Ensure indic fonts have the Indian Rupee Sign glyph.

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

Font has the proper sfntVersion value?

Check ID: <FontBakeryCheck:com.adobe.fonts/check/sfnt_version>

Does the font contain a soft hyphen?

Check ID: <FontBakeryCheck:com.google.fonts/check/soft_hyphen>
⚠️ Libertine-Super[wght].ttf
  • ⚠️ WARN

    This font has a 'Soft Hyphen' character.

    [code: softhyphen]

Checking STAT table entries in static fonts.

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

Check correctness of STAT table strings

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

EXPERIMENTAL CHECK - Since 2024/Jun/04
Check tabular widths don't have kerning.

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

Ensure component transforms do not perform scaling or rotation.

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

Checking with fontTools.ttx

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

EXPERIMENTAL CHECK - Since 2024/Jul/17
Checking that the typoAscender exceeds the yMax of the /Agrave.

Check ID: <FontBakeryCheck:com.arrowtype.fonts/check/typoascender_exceeds_Agrave>

Font contains unique glyph names?

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

Check font contains no unreachable glyphs

Check ID: <FontBakeryCheck:com.google.fonts/check/unreachable_glyphs>
⚠️ Libertine-Super[wght].ttf
  • ⚠️ WARN

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

    - _currency_part

- prime
    [code: unreachable-glyphs]

Are there unwanted tables?

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

Glyph names are all valid?

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

Font has **proper** whitespace glyph names?

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

Font contains glyphs for whitespace characters?

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

Whitespace glyphs have ink?

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

Space and non-breaking space have the same width?

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

Article Checks

⚠️

Validate size, and resolution of article images, and ensure article page has minimum length and includes visual assets.

Check ID: <FontBakeryCheck:com.google.fonts/check/article/images>
⚠️ Libertine-Super[wght].ttf
  • ⚠️ WARN

    Family metadata at fonts/variable does not have an article.

    [code: lacks-article]

Metadata Checks

⚠️⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩

Does METADATA.pb copyright field contain broken links?

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

METADATA.pb: Font styles are named canonically?

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

METADATA.pb: Check that font weight has a canonical value.

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

Check samples can be rendered.

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

Ensure METADATA.pb category field is valid.

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

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>

Validate VF axes match the ones declared on METADATA.pb.

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

METADATA.pb: Check URL on copyright string is the same as in repository_url field.

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

METADATA.pb: Copyright notice is the same in all fonts?

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

EXPERIMENTAL CHECK - Since 2024/May/22
Validate 'date_added' field on METADATA.pb.

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

METADATA.pb: Designers are listed correctly on the Google Fonts catalog?

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

Multiple values in font designer field in METADATA.pb must be separated by commas.

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

At least one designer is declared in METADATA.pb

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

Ensure METADATA.pb does not use escaped strings.

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

Check font family directory name.

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

Check that METADATA.pb family values are all the same.

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

METADATA.pb: Font filenames match font.filename entries?

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

Validate METADATA.pb axes values are within gf_axisregistry bounds.

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

Validate METADATA.pb axes tags are defined in gf_axisregistry.

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

Ensure there is a regular style defined in METADATA.pb.

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

Check METADATA.pb includes production subsets.

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

Check METADATA.pb file only contains a single CJK subset.

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

METADATA.pb license is "APACHE2", "UFL" or "OFL"?

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

METADATA.pb font.filename and font.post_script_name fields have equivalent values?

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

METADATA.pb font.full_name and font.post_script_name fields have equivalent values ?

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

METADATA.pb: Check font name is the same as family name.

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

METADATA.pb weight matches postScriptName for static fonts.

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

METADATA.pb should contain at least "menu" and "latin" subsets.

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

METADATA.pb: Validate family.minisite_url field.

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

METADATA.pb font.name and font.full_name fields match the values declared on the name table?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/nameid/family_and_full_names>

METADATA.pb font.name value should be same as the family name declared on the name table.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/nameid/font_name>

Checks METADATA.pb font.post_script_name matches postscript name declared on the name table.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/nameid/post_script_name>

Check METADATA.pb font weights are correct.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/os2_weightclass>

Check METADATA.pb parse correctly.

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

METADATA.pb: Check for primary_script

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

METADATA.pb: Regular should be 400.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/regular_is_400>

Copyright notice on METADATA.pb should not contain 'Reserved Font Name'.

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

METADATA.pb subsets should be alphabetically ordered.

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

Ensure METADATA.pb lists all font binaries.

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

METADATA.pb: check if fonts field only has unique "full_name" values.

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

METADATA.pb: check if fonts field only contains unique style:weight pairs.

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

Check for codepoints not covered by METADATA subsets.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/unreachable_subsetting>
⚠️ Libertine-Super[wght].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+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+0302 COMBINING CIRCUMFLEX ACCENT: try adding one of: math, coptic, tifinagh, cherokee
    • U+0306 COMBINING BREVE: try adding one of: old-permic, tifinagh
    • U+0307 COMBINING DOT ABOVE: try adding one of: malayalam, syriac, todhri, canadian-aboriginal, duployan, tifinagh, tai-le, coptic, old-permic, math, hebrew
    • 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: tai-le, cherokee
    • U+030F COMBINING DOUBLE GRAVE ACCENT: not included in any glyphset definition
    • U+0311 COMBINING INVERTED BREVE: try adding one of: coptic, todhri
    • U+0312 COMBINING TURNED COMMA ABOVE: try adding math
    • U+031B COMBINING HORN: not included in any glyphset definition
    • U+0324 COMBINING DIAERESIS BELOW: try adding one of: duployan, syriac, cherokee
    • U+0326 COMBINING COMMA BELOW: try adding math
    • U+0327 COMBINING CEDILLA: try adding math
    • U+0328 COMBINING OGONEK: not included in any glyphset definition
    • U+032E COMBINING BREVE BELOW: try adding syriac
    • U+0330 COMBINING TILDE BELOW: try adding one of: math, syriac, cherokee
    • U+0331 COMBINING MACRON BELOW: try adding one of: gothic, sunuwar, syriac, cherokee, thai, tifinagh, caucasian-albanian
    • U+0394 GREEK CAPITAL LETTER DELTA: try adding one of: math, elbasan, greek
    • U+03A9 GREEK CAPITAL LETTER OMEGA: try adding one of: math, elbasan, greek
    • U+03BC GREEK SMALL LETTER MU: try adding one of: math, greek
    • U+03C0 GREEK SMALL LETTER PI: try adding one of: math, greek, yi
    • U+0E3F THAI CURRENCY SYMBOL BAHT: try adding thai
    • U+2007 FIGURE SPACE: try adding symbols2
    • U+2008 PUNCTUATION SPACE: try adding symbols2
    • U+200A HAIR SPACE: try adding symbols2
    • U+2010 HYPHEN: try adding one of: kayah-li, cham, kharoshthi, yi, sora-sompeng, sundanese, lisu, syloti-nagri, coptic, kaithi, armenian, hebrew, arabic
    • U+2012 FIGURE DASH: not included in any glyphset definition
    • U+2015 HORIZONTAL BAR: try adding adlam
    • U+2021 DOUBLE DAGGER: try adding adlam
    • U+2030 PER MILLE SIGN: try adding adlam
    • U+2070 SUPERSCRIPT ZERO: try adding math
    • U+2074 SUPERSCRIPT FOUR: try adding math
    • U+2075 SUPERSCRIPT FIVE: try adding math
    • U+2076 SUPERSCRIPT SIX: try adding math
    • U+2077 SUPERSCRIPT SEVEN: try adding math
    • U+2078 SUPERSCRIPT EIGHT: try adding math
    • U+2079 SUPERSCRIPT NINE: try adding math
    • U+2080 SUBSCRIPT ZERO: try adding math
    • U+2081 SUBSCRIPT ONE: try adding math
    • U+2082 SUBSCRIPT TWO: try adding math
    • U+2083 SUBSCRIPT THREE: try adding math
    • U+2084 SUBSCRIPT FOUR: try adding math
    • U+2085 SUBSCRIPT FIVE: try adding math
    • U+2086 SUBSCRIPT SIX: try adding math
    • U+2087 SUBSCRIPT SEVEN: try adding math
    • U+2088 SUBSCRIPT EIGHT: try adding math
    • U+2089 SUBSCRIPT NINE: try adding math
    • U+2105 CARE OF: try adding math
    • U+2106 CADA UNA: try adding math
    • U+2126 OHM SIGN: try adding math
    • U+212E ESTIMATED SYMBOL: try adding math
    • U+215B VULGAR FRACTION ONE EIGHTH: try adding symbols
    • U+215C VULGAR FRACTION THREE EIGHTHS: try adding symbols
    • U+215D VULGAR FRACTION FIVE EIGHTHS: try adding symbols
    • U+215E VULGAR FRACTION SEVEN EIGHTHS: try adding symbols
    • U+2190 LEFTWARDS ARROW: try adding one of: math, symbols
    • U+2192 RIGHTWARDS ARROW: try adding one of: math, symbols
    • U+2194 LEFT RIGHT ARROW: try adding one of: math, symbols
    • U+2195 UP DOWN ARROW: try adding one of: math, symbols
    • U+2196 NORTH WEST ARROW: try adding one of: math, symbols
    • U+2197 NORTH EAST ARROW: try adding one of: math, symbols
    • U+2198 SOUTH EAST ARROW: try adding one of: math, symbols
    • U+2199 SOUTH WEST ARROW: try adding one of: math, symbols
    • U+21BA ANTICLOCKWISE OPEN CIRCLE ARROW: try adding math
    • U+21BB CLOCKWISE OPEN CIRCLE ARROW: try adding math
    • U+21C4 RIGHTWARDS ARROW OVER LEFTWARDS ARROW: try adding math
    • U+21C5 UPWARDS ARROW LEFTWARDS OF DOWNWARDS ARROW: try adding math
    • U+21E7 UPWARDS WHITE ARROW: try adding symbols
    • 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: math, symbols, tai-tham, yi
    • 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+2317 VIEWDATA SQUARE: try adding symbols
    • U+2318 PLACE OF INTEREST SIGN: try adding symbols
    • U+2325 OPTION KEY: try adding symbols
    • U+2460 CIRCLED DIGIT ONE: try adding one of: symbols, mongolian, yi
    • U+2461 CIRCLED DIGIT TWO: try adding one of: symbols, mongolian, yi
    • U+2462 CIRCLED DIGIT THREE: try adding one of: symbols, mongolian, yi
    • U+2463 CIRCLED DIGIT FOUR: try adding one of: symbols, mongolian, yi
    • U+2464 CIRCLED DIGIT FIVE: try adding one of: symbols, mongolian, yi
    • U+2465 CIRCLED DIGIT SIX: try adding one of: symbols, mongolian, yi
    • U+2466 CIRCLED DIGIT SEVEN: try adding one of: symbols, mongolian, yi
    • U+2467 CIRCLED DIGIT EIGHT: try adding one of: symbols, mongolian, yi
    • U+2468 CIRCLED DIGIT NINE: try adding one of: symbols, mongolian, yi
    • U+24B6 CIRCLED LATIN CAPITAL LETTER A: try adding symbols
    • U+24B7 CIRCLED LATIN CAPITAL LETTER B: try adding symbols
    • U+24B8 CIRCLED LATIN CAPITAL LETTER C: try adding symbols
    • U+24B9 CIRCLED LATIN CAPITAL LETTER D: try adding symbols
    • U+24BA CIRCLED LATIN CAPITAL LETTER E: try adding symbols
    • U+24BB CIRCLED LATIN CAPITAL LETTER F: try adding symbols
    • U+24BC CIRCLED LATIN CAPITAL LETTER G: try adding symbols
    • U+24BD CIRCLED LATIN CAPITAL LETTER H: try adding symbols
    • U+24BE CIRCLED LATIN CAPITAL LETTER I: try adding symbols
    • U+24BF CIRCLED LATIN CAPITAL LETTER J: try adding symbols
    • U+24C0 CIRCLED LATIN CAPITAL LETTER K: try adding symbols
    • U+24C1 CIRCLED LATIN CAPITAL LETTER L: try adding symbols
    • U+24C2 CIRCLED LATIN CAPITAL LETTER M: try adding symbols
    • U+24C3 CIRCLED LATIN CAPITAL LETTER N: try adding symbols
    • U+24C4 CIRCLED LATIN CAPITAL LETTER O: try adding symbols
    • U+24C5 CIRCLED LATIN CAPITAL LETTER P: try adding symbols
    • U+24C6 CIRCLED LATIN CAPITAL LETTER Q: try adding symbols
    • U+24C7 CIRCLED LATIN CAPITAL LETTER R: try adding symbols
    • U+24C8 CIRCLED LATIN CAPITAL LETTER S: try adding symbols
    • U+24C9 CIRCLED LATIN CAPITAL LETTER T: try adding symbols
    • U+24CA CIRCLED LATIN CAPITAL LETTER U: try adding symbols
    • U+24CB CIRCLED LATIN CAPITAL LETTER V: try adding symbols
    • U+24CC CIRCLED LATIN CAPITAL LETTER W: try adding symbols
    • U+24CD CIRCLED LATIN CAPITAL LETTER X: try adding symbols
    • U+24CE CIRCLED LATIN CAPITAL LETTER Y: try adding symbols
    • U+24CF CIRCLED LATIN CAPITAL LETTER Z: try adding symbols
    • U+24D0 CIRCLED LATIN SMALL LETTER A: try adding symbols
    • U+24D1 CIRCLED LATIN SMALL LETTER B: try adding symbols
    • U+24D2 CIRCLED LATIN SMALL LETTER C: try adding symbols
    • U+24D3 CIRCLED LATIN SMALL LETTER D: try adding symbols
    • U+24D4 CIRCLED LATIN SMALL LETTER E: try adding symbols
    • U+24D5 CIRCLED LATIN SMALL LETTER F: try adding symbols
    • U+24D6 CIRCLED LATIN SMALL LETTER G: try adding symbols
    • U+24D7 CIRCLED LATIN SMALL LETTER H: try adding symbols
    • U+24D8 CIRCLED LATIN SMALL LETTER I: try adding symbols
    • U+24D9 CIRCLED LATIN SMALL LETTER J: try adding symbols
    • U+24DA CIRCLED LATIN SMALL LETTER K: try adding symbols
    • U+24DB CIRCLED LATIN SMALL LETTER L: try adding symbols
    • U+24DC CIRCLED LATIN SMALL LETTER M: try adding symbols
    • U+24DD CIRCLED LATIN SMALL LETTER N: try adding symbols
    • U+24DE CIRCLED LATIN SMALL LETTER O: try adding symbols
    • U+24DF CIRCLED LATIN SMALL LETTER P: try adding symbols
    • U+24E0 CIRCLED LATIN SMALL LETTER Q: try adding symbols
    • U+24E1 CIRCLED LATIN SMALL LETTER R: try adding symbols
    • U+24E2 CIRCLED LATIN SMALL LETTER S: try adding symbols
    • U+24E3 CIRCLED LATIN SMALL LETTER T: try adding symbols
    • U+24E4 CIRCLED LATIN SMALL LETTER U: try adding symbols
    • U+24E5 CIRCLED LATIN SMALL LETTER V: try adding symbols
    • U+24E6 CIRCLED LATIN SMALL LETTER W: try adding symbols
    • U+24E7 CIRCLED LATIN SMALL LETTER X: try adding symbols
    • U+24E8 CIRCLED LATIN SMALL LETTER Y: try adding symbols
    • U+24E9 CIRCLED LATIN SMALL LETTER Z: try adding symbols
    • U+24EA CIRCLED DIGIT ZERO: try adding symbols
    • U+24FF NEGATIVE CIRCLED DIGIT ZERO: try adding symbols
    • U+25A0 BLACK SQUARE: try adding symbols
    • U+25A1 WHITE SQUARE: try adding symbols
    • U+25B2 BLACK UP-POINTING TRIANGLE: try adding symbols
    • U+25B3 WHITE UP-POINTING TRIANGLE: try adding one of: math, symbols
    • U+25B6 BLACK RIGHT-POINTING TRIANGLE: try adding symbols
    • U+25B7 WHITE RIGHT-POINTING TRIANGLE: try adding one of: math, symbols
    • U+25BC BLACK DOWN-POINTING TRIANGLE: try adding symbols
    • U+25BD WHITE DOWN-POINTING TRIANGLE: try adding one of: math, symbols
    • U+25C0 BLACK LEFT-POINTING TRIANGLE: try adding symbols
    • U+25C1 WHITE LEFT-POINTING TRIANGLE: try adding one of: math, symbols
    • U+25C6 BLACK DIAMOND: try adding symbols
    • U+25C7 WHITE DIAMOND: try adding symbols
    • U+25CA LOZENGE: try adding one of: math, symbols
    • U+25CB WHITE CIRCLE: try adding symbols
    • U+25CC DOTTED CIRCLE: try adding one of: grantha, elbasan, syloti-nagri, buhid, tifinagh, buginese, caucasian-albanian, bhaiksuki, hebrew, yi, marchen, coptic, rejang, kaithi, tamil, kayah-li, kharoshthi, malayalam, khojki, chakma, siddham, math, telugu, hanifi-rohingya, hanunoo, mende-kikakui, javanese, lao, limbu, bassa-vah, ahom, bengali, tibetan, adlam, gurmukhi, symbols, wancho, kannada, brahmi, dogra, gujarati, warang-citi, khudawadi, cham, lepcha, phags-pa, oriya, old-permic, tagbanwa, syriac, music, mahajani, tai-viet, saurashtra, manichaean, pahawh-hmong, sogdian, miao, meetei-mayek, sundanese, sharada, zanabazar-square, new-tai-lue, duployan, tai-le, sinhala, psalter-pahlavi, mongolian, devanagari, mandaic, myanmar, batak, newa, thai, tagalog, khmer, nko, thaana, tai-tham, armenian, gunjala-gondi, balinese, canadian-aboriginal, soyombo, tirhuta, osage, takri, modi, masaram-gondi
    • U+25CF BLACK CIRCLE: try adding symbols
    • U+2606 WHITE STAR: try adding symbols
    • U+261A BLACK LEFT POINTING INDEX: try adding symbols
    • U+261B BLACK RIGHT POINTING INDEX: try adding symbols
    • U+261C WHITE LEFT POINTING INDEX: try adding symbols
    • U+261D WHITE UP POINTING INDEX: try adding symbols
    • U+261E WHITE RIGHT POINTING INDEX: try adding symbols
    • U+261F WHITE DOWN POINTING INDEX: try adding symbols
    • U+262F YIN YANG: try adding symbols
    • U+2639 WHITE FROWNING FACE: try adding symbols
    • U+263A WHITE SMILING FACE: try adding symbols
    • U+263B BLACK SMILING FACE: try adding symbols
    • U+2660 BLACK SPADE SUIT: try adding symbols
    • U+2663 BLACK CLUB SUIT: try adding symbols
    • U+2665 BLACK HEART SUIT: try adding symbols
    • U+2666 BLACK DIAMOND SUIT: try adding symbols
    • U+2713 CHECK MARK: try adding symbols
    • U+272F PINWHEEL STAR: try adding symbols
    • U+2735 EIGHT POINTED PINWHEEL STAR: try adding symbols
    • U+273F BLACK FLORETTE: try adding symbols
    • U+2740 WHITE FLORETTE: try adding symbols
    • U+2766 FLORAL HEART: try adding symbols
    • U+2776 DINGBAT NEGATIVE CIRCLED DIGIT ONE: try adding symbols
    • U+2777 DINGBAT NEGATIVE CIRCLED DIGIT TWO: try adding symbols
    • U+2778 DINGBAT NEGATIVE CIRCLED DIGIT THREE: try adding symbols
    • U+2779 DINGBAT NEGATIVE CIRCLED DIGIT FOUR: try adding symbols
    • U+277A DINGBAT NEGATIVE CIRCLED DIGIT FIVE: try adding symbols
    • U+277B DINGBAT NEGATIVE CIRCLED DIGIT SIX: try adding symbols
    • U+277C DINGBAT NEGATIVE CIRCLED DIGIT SEVEN: try adding symbols
    • U+277D DINGBAT NEGATIVE CIRCLED DIGIT EIGHT: try adding symbols
    • U+277E DINGBAT NEGATIVE CIRCLED DIGIT NINE: try adding symbols
    • U+2B1B BLACK LARGE SQUARE: try adding symbols
    • U+2B1C WHITE LARGE SQUARE: try adding symbols
    • U+2B98 THREE-D TOP-LIGHTED LEFTWARDS EQUILATERAL ARROWHEAD: try adding symbols
    • U+2B99 THREE-D RIGHT-LIGHTED UPWARDS EQUILATERAL ARROWHEAD: try adding symbols
    • U+2B9A THREE-D TOP-LIGHTED RIGHTWARDS EQUILATERAL ARROWHEAD: try adding symbols
    • U+2B9B THREE-D LEFT-LIGHTED DOWNWARDS EQUILATERAL ARROWHEAD: try adding symbols
    • U+2B9C BLACK LEFTWARDS EQUILATERAL ARROWHEAD: try adding symbols
    • U+2B9D BLACK UPWARDS EQUILATERAL ARROWHEAD: try adding symbols
    • U+2B9E BLACK RIGHTWARDS EQUILATERAL ARROWHEAD: try adding symbols
    • U+2B9F BLACK DOWNWARDS EQUILATERAL ARROWHEAD: try adding symbols
    • U+E133 : not included in any glyphset definition
    • U+E134 : not included in any glyphset definition
    • U+E135 : not included in any glyphset definition
    • U+FB00 LATIN SMALL LIGATURE FF: not included in any glyphset definition
    • U+FB01 LATIN SMALL LIGATURE FI: not included in any glyphset definition
    • U+FB02 LATIN SMALL LIGATURE FL: not included in any glyphset definition
    • U+FB03 LATIN SMALL LIGATURE FFI: not included in any glyphset definition
    • U+FB04 LATIN SMALL LIGATURE FFL: not included in any glyphset definition
    • U+FB06 LATIN SMALL LIGATURE ST: not included in any glyphset definition
    • U+FFFC OBJECT REPLACEMENT CHARACTER: not included in any glyphset definition
    • U+1F150 NEGATIVE CIRCLED LATIN CAPITAL LETTER A: try adding symbols
    • U+1F151 NEGATIVE CIRCLED LATIN CAPITAL LETTER B: try adding symbols
    • U+1F152 NEGATIVE CIRCLED LATIN CAPITAL LETTER C: try adding symbols
    • U+1F153 NEGATIVE CIRCLED LATIN CAPITAL LETTER D: try adding symbols
    • U+1F154 NEGATIVE CIRCLED LATIN CAPITAL LETTER E: try adding symbols
    • U+1F155 NEGATIVE CIRCLED LATIN CAPITAL LETTER F: try adding symbols
    • U+1F156 NEGATIVE CIRCLED LATIN CAPITAL LETTER G: try adding symbols
    • U+1F157 NEGATIVE CIRCLED LATIN CAPITAL LETTER H: try adding symbols
    • U+1F158 NEGATIVE CIRCLED LATIN CAPITAL LETTER I: try adding symbols
    • U+1F159 NEGATIVE CIRCLED LATIN CAPITAL LETTER J: try adding symbols
    • U+1F15A NEGATIVE CIRCLED LATIN CAPITAL LETTER K: try adding symbols
    • U+1F15B NEGATIVE CIRCLED LATIN CAPITAL LETTER L: try adding symbols
    • U+1F15C NEGATIVE CIRCLED LATIN CAPITAL LETTER M: try adding symbols
    • U+1F15D NEGATIVE CIRCLED LATIN CAPITAL LETTER N: try adding symbols
    • U+1F15E NEGATIVE CIRCLED LATIN CAPITAL LETTER O: try adding symbols
    • U+1F15F NEGATIVE CIRCLED LATIN CAPITAL LETTER P: try adding symbols
    • U+1F160 NEGATIVE CIRCLED LATIN CAPITAL LETTER Q: try adding symbols
    • U+1F161 NEGATIVE CIRCLED LATIN CAPITAL LETTER R: try adding symbols
    • U+1F162 NEGATIVE CIRCLED LATIN CAPITAL LETTER S: try adding symbols
    • U+1F163 NEGATIVE CIRCLED LATIN CAPITAL LETTER T: try adding symbols
    • U+1F164 NEGATIVE CIRCLED LATIN CAPITAL LETTER U: try adding symbols
    • U+1F165 NEGATIVE CIRCLED LATIN CAPITAL LETTER V: try adding symbols
    • U+1F166 NEGATIVE CIRCLED LATIN CAPITAL LETTER W: try adding symbols
    • U+1F167 NEGATIVE CIRCLED LATIN CAPITAL LETTER X: try adding symbols
    • U+1F168 NEGATIVE CIRCLED LATIN CAPITAL LETTER Y: try adding symbols
    • U+1F169 NEGATIVE CIRCLED LATIN CAPITAL LETTER Z: try adding symbols
    • U+1F7CF HEAVY EIGHT POINTED BLACK STAR: try adding symbols
    • U+1F7D3 HEAVY TWELVE POINTED BLACK STAR: try adding symbols
    • U+1F7D4 HEAVY TWELVE POINTED PINWHEEL STAR: try adding symbols
    • U+F0000 : not included in any glyphset definition
    • U+F0001 : not included in any glyphset definition
    • U+F0002 : not included in any glyphset definition

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

    [code: unreachable-subsetting]

Check for METADATA subsets with zero support.

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

METADATA.pb font.filename field contains font name in right format?

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

METADATA.pb font.full_name field contains font name in right format?

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

Check name ID 25 to end with "Italic" for Italic VFs.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/valid_nameid25>

METADATA.pb font.post_script_name field contains font name in right format?

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

Shaping Checks

🔥⚠️⏩⏩⏩

Check that texts shape as per expectation

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

Check that no forbidden glyphs are found while shaping

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

Check that no collisions are found while shaping

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

Ensure dotted circle glyph is present and can attach marks.

Check ID: <FontBakeryCheck:com.google.fonts/check/dotted_circle>
🔥 Libertine-Super[wght].ttf
  • 🔥 FAIL

    The following glyphs could not be attached to the dotted circle glyph:

    - uni031B

- uni0328
    [code: unattached-dotted-circle-marks]

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

Check ID: <FontBakeryCheck:com.google.fonts/check/soft_dotted>
⚠️ Libertine-Super[wght].ttf
  • ⚠️ WARN

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

    The dot of soft dotted characters should disappear in other cases, for example: j̉ j̏ j̛̉ j̛̏ j̛̑ j̣̉ j̣̏ j̣̑ j̤̉ j̤̏ j̤̑ j̦̉ j̦̏ j̦̑ j̧̉ j̧̏ j̧̑ j̨̉ j̨̏ j̨̑

    Your font fully covers the following languages that require the soft-dotted feature: Ebira (Latn, 2,200,000 speakers), Kaska (Latn, 125 speakers), Dutch (Latn, 31,709,104 speakers), Ijo, Southeast (Latn, 2,471,000 speakers), Navajo (Latn, 166,319 speakers), Lithuanian (Latn, 2,357,094 speakers), Ma’di (Latn, 584,000 speakers), Ekpeye (Latn, 226,000 speakers), Han (Latn, 6 speakers).

    Your font does not cover the following languages that require the soft-dotted feature: Cicipu (Latn, 44,000 speakers), Makaa (Latn, 221,000 speakers), Belarusian (Cyrl, 10,064,517 speakers), Southern Kisi (Latn, 360,000 speakers), Dii (Latn, 71,000 speakers), Heiltsuk (Latn, 300 speakers), Sar (Latn, 500,000 speakers), Teke-Ebo (Latn, 260,000 speakers), Fur (Latn, 1,230,163 speakers), Mundani (Latn, 34,000 speakers), Yala (Latn, 200,000 speakers), Ejagham (Latn, 120,000 speakers), Koonzime (Latn, 40,000 speakers), Basaa (Latn, 332,940 speakers), Igbo (Latn, 27,823,640 speakers), Ngbaka (Latn, 1,020,000 speakers), Nzakara (Latn, 50,000 speakers), Lugbara (Latn, 2,200,000 speakers), Gulay (Latn, 250,478 speakers), Mango (Latn, 77,000 speakers), Vute (Latn, 21,000 speakers), Mfumte (Latn, 79,000 speakers), Kom (Latn, 360,685 speakers), Kpelle, Guinea (Latn, 622,000 speakers), Avokaya (Latn, 100,000 speakers), Zapotec (Latn, 490,000 speakers), Aghem (Latn, 38,843 speakers), Ukrainian (Cyrl, 29,273,587 speakers), Bafut (Latn, 158,146 speakers), Dan (Latn, 1,099,244 speakers), Nateni (Latn, 100,000 speakers), South Central Banda (Latn, 244,000 speakers), Bete-Bendi (Latn, 100,000 speakers).

    [code: soft-dotted]

Outline Checks

⚠️⏩⏩⏩⏩

Are there any misaligned on-curve points?

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

Are any segments inordinately short?

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

Do any segments have colinear vectors?

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

Do outlines contain any jaggy segments?

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

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

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

Check the direction of the outermost contour in each glyph

Check ID: <FontBakeryCheck:com.google.fonts/check/outline_direction>
⚠️ Libertine-Super[wght].ttf
  • ⚠️ WARN

    The following glyphs have a counter-clockwise outer contour:

    * a.blackCircled has a counter-clockwise outer contour

* a.blackCircled.ss01 has a counter-clockwise outer contour

* b.blackCircled has a counter-clockwise outer contour

* b.blackCircled.ss01 has a counter-clockwise outer contour

* c.blackCircled has a counter-clockwise outer contour

* c.blackCircled.ss01 has a counter-clockwise outer contour

* d.blackCircled has a counter-clockwise outer contour

* d.blackCircled.ss01 has a counter-clockwise outer contour

* e.blackCircled has a counter-clockwise outer contour

* e.blackCircled.ss01 has a counter-clockwise outer contour

* f.blackCircled has a counter-clockwise outer contour

* f.blackCircled.ss01 has a counter-clockwise outer contour

* g.blackCircled has a counter-clockwise outer contour

* g.blackCircled.ss01 has a counter-clockwise outer contour

* h.blackCircled has a counter-clockwise outer contour

* h.blackCircled.ss01 has a counter-clockwise outer contour

* i.blackCircled has a counter-clockwise outer contour

* i.blackCircled.ss01 has a counter-clockwise outer contour

* j.blackCircled has a counter-clockwise outer contour

* j.blackCircled.ss01 has a counter-clockwise outer contour

* k.blackCircled has a counter-clockwise outer contour

* k.blackCircled.ss01 has a counter-clockwise outer contour

* l.blackCircled has a counter-clockwise outer contour

* l.blackCircled.ss01 has a counter-clockwise outer contour

* m.blackCircled has a counter-clockwise outer contour

* m.blackCircled.ss01 has a counter-clockwise outer contour

* n.blackCircled has a counter-clockwise outer contour

* n.blackCircled.ss01 has a counter-clockwise outer contour

* o.blackCircled has a counter-clockwise outer contour

* o.blackCircled.ss01 has a counter-clockwise outer contour

* p.blackCircled has a counter-clockwise outer contour

* p.blackCircled.ss01 has a counter-clockwise outer contour

* q.blackCircled has a counter-clockwise outer contour

* q.blackCircled.ss01 has a counter-clockwise outer contour

* r.blackCircled has a counter-clockwise outer contour

* r.blackCircled.ss01 has a counter-clockwise outer contour

* s.blackCircled has a counter-clockwise outer contour

* s.blackCircled.ss01 has a counter-clockwise outer contour

* t.blackCircled has a counter-clockwise outer contour

* t.blackCircled.ss01 has a counter-clockwise outer contour

* u.blackCircled has a counter-clockwise outer contour

* u.blackCircled.ss01 has a counter-clockwise outer contour

* u1F150 (U+1F150) has a counter-clockwise outer contour

* u1F150.ss01 has a counter-clockwise outer contour

* u1F151 (U+1F151) has a counter-clockwise outer contour

* u1F151.ss01 has a counter-clockwise outer contour

* u1F152 (U+1F152) has a counter-clockwise outer contour

* u1F152.ss01 has a counter-clockwise outer contour

* u1F153 (U+1F153) has a counter-clockwise outer contour

* u1F153.ss01 has a counter-clockwise outer contour

* u1F154 (U+1F154) has a counter-clockwise outer contour

* u1F154.ss01 has a counter-clockwise outer contour

* u1F155 (U+1F155) has a counter-clockwise outer contour

* u1F155.ss01 has a counter-clockwise outer contour

* u1F156 (U+1F156) has a counter-clockwise outer contour

* u1F156.ss01 has a counter-clockwise outer contour

* u1F157 (U+1F157) has a counter-clockwise outer contour

* u1F157.ss01 has a counter-clockwise outer contour

* u1F158 (U+1F158) has a counter-clockwise outer contour

* u1F158.ss01 has a counter-clockwise outer contour

* u1F159 (U+1F159) has a counter-clockwise outer contour

* u1F159.ss01 has a counter-clockwise outer contour

* u1F15A (U+1F15A) has a counter-clockwise outer contour

* u1F15A.ss01 has a counter-clockwise outer contour

* u1F15B (U+1F15B) has a counter-clockwise outer contour

* u1F15B.ss01 has a counter-clockwise outer contour

* u1F15C (U+1F15C) has a counter-clockwise outer contour

* u1F15C.ss01 has a counter-clockwise outer contour

* u1F15D (U+1F15D) has a counter-clockwise outer contour

* u1F15D.ss01 has a counter-clockwise outer contour

* u1F15E (U+1F15E) has a counter-clockwise outer contour

* u1F15E.ss01 has a counter-clockwise outer contour

* u1F15F (U+1F15F) has a counter-clockwise outer contour

* u1F15F.ss01 has a counter-clockwise outer contour

* u1F160 (U+1F160) has a counter-clockwise outer contour

* u1F160.ss01 has a counter-clockwise outer contour

* u1F161 (U+1F161) has a counter-clockwise outer contour

* u1F161.ss01 has a counter-clockwise outer contour

* u1F162 (U+1F162) has a counter-clockwise outer contour

* u1F162.ss01 has a counter-clockwise outer contour

* u1F163 (U+1F163) has a counter-clockwise outer contour

* u1F163.ss01 has a counter-clockwise outer contour

* u1F164 (U+1F164) has a counter-clockwise outer contour

* u1F164.ss01 has a counter-clockwise outer contour

* u1F165 (U+1F165) has a counter-clockwise outer contour

* u1F165.ss01 has a counter-clockwise outer contour

* u1F166 (U+1F166) has a counter-clockwise outer contour

* u1F166.ss01 has a counter-clockwise outer contour

* u1F167 (U+1F167) has a counter-clockwise outer contour

* u1F167.ss01 has a counter-clockwise outer contour

* u1F168 (U+1F168) has a counter-clockwise outer contour

* u1F168.ss01 has a counter-clockwise outer contour

* u1F169 (U+1F169) has a counter-clockwise outer contour

* u1F169.ss01 has a counter-clockwise outer contour

* uni2460 (U+2460) has a counter-clockwise outer contour

* uni2460.ss01 has a counter-clockwise outer contour

* uni2461 (U+2461) has a counter-clockwise outer contour

* uni2461.ss01 has a counter-clockwise outer contour

* uni2462 (U+2462) has a counter-clockwise outer contour

* uni2462.ss01 has a counter-clockwise outer contour

* uni2463 (U+2463) has a counter-clockwise outer contour

* uni2463.ss01 has a counter-clockwise outer contour

* uni2464 (U+2464) has a counter-clockwise outer contour

* uni2464.ss01 has a counter-clockwise outer contour

* uni2465 (U+2465) has a counter-clockwise outer contour

* uni2465.ss01 has a counter-clockwise outer contour

* uni2466 (U+2466) has a counter-clockwise outer contour

* uni2466.ss01 has a counter-clockwise outer contour

* uni2467 (U+2467) has a counter-clockwise outer contour

* uni2467.ss01 has a counter-clockwise outer contour

* uni2468 (U+2468) has a counter-clockwise outer contour

* uni2468.ss01 has a counter-clockwise outer contour

* uni24B6 (U+24B6) has a counter-clockwise outer contour

* uni24B6.ss01 has a counter-clockwise outer contour

* uni24B7 (U+24B7) has a counter-clockwise outer contour

* uni24B7.ss01 has a counter-clockwise outer contour

* uni24B8 (U+24B8) has a counter-clockwise outer contour

* uni24B8.ss01 has a counter-clockwise outer contour

* uni24B9 (U+24B9) has a counter-clockwise outer contour

* uni24B9.ss01 has a counter-clockwise outer contour

* uni24BA (U+24BA) has a counter-clockwise outer contour

* uni24BA.ss01 has a counter-clockwise outer contour

* uni24BB (U+24BB) has a counter-clockwise outer contour

* uni24BB.ss01 has a counter-clockwise outer contour

* uni24BC (U+24BC) has a counter-clockwise outer contour

* uni24BC.ss01 has a counter-clockwise outer contour

* uni24BD (U+24BD) has a counter-clockwise outer contour

* uni24BD.ss01 has a counter-clockwise outer contour

* uni24BE (U+24BE) has a counter-clockwise outer contour

* uni24BE.ss01 has a counter-clockwise outer contour

* uni24BF (U+24BF) has a counter-clockwise outer contour

* uni24BF.ss01 has a counter-clockwise outer contour

* uni24C0 (U+24C0) has a counter-clockwise outer contour

* uni24C0.ss01 has a counter-clockwise outer contour

* uni24C1 (U+24C1) has a counter-clockwise outer contour

* uni24C1.ss01 has a counter-clockwise outer contour

* uni24C2 (U+24C2) has a counter-clockwise outer contour

* uni24C2.ss01 has a counter-clockwise outer contour

* uni24C3 (U+24C3) has a counter-clockwise outer contour

* uni24C3.ss01 has a counter-clockwise outer contour

* uni24C4 (U+24C4) has a counter-clockwise outer contour

* uni24C4.ss01 has a counter-clockwise outer contour

* uni24C5 (U+24C5) has a counter-clockwise outer contour

* uni24C5.ss01 has a counter-clockwise outer contour

* uni24C6 (U+24C6) has a counter-clockwise outer contour

* uni24C6.ss01 has a counter-clockwise outer contour

* uni24C7 (U+24C7) has a counter-clockwise outer contour

* uni24C7.ss01 has a counter-clockwise outer contour

* uni24C8 (U+24C8) has a counter-clockwise outer contour

* uni24C8.ss01 has a counter-clockwise outer contour

* uni24C9 (U+24C9) has a counter-clockwise outer contour

* uni24C9.ss01 has a counter-clockwise outer contour

* uni24CA (U+24CA) has a counter-clockwise outer contour

* uni24CA.ss01 has a counter-clockwise outer contour

* uni24CB (U+24CB) has a counter-clockwise outer contour

* uni24CB.ss01 has a counter-clockwise outer contour

* uni24CC (U+24CC) has a counter-clockwise outer contour

* uni24CC.ss01 has a counter-clockwise outer contour

* uni24CD (U+24CD) has a counter-clockwise outer contour

* uni24CD.ss01 has a counter-clockwise outer contour

* uni24CE (U+24CE) has a counter-clockwise outer contour

* uni24CE.ss01 has a counter-clockwise outer contour

* uni24CF (U+24CF) has a counter-clockwise outer contour

* uni24CF.ss01 has a counter-clockwise outer contour

* uni24D0 (U+24D0) has a counter-clockwise outer contour

* uni24D0.ss01 has a counter-clockwise outer contour

* uni24D1 (U+24D1) has a counter-clockwise outer contour

* uni24D1.ss01 has a counter-clockwise outer contour

* uni24D2 (U+24D2) has a counter-clockwise outer contour

* uni24D2.ss01 has a counter-clockwise outer contour

* uni24D3 (U+24D3) has a counter-clockwise outer contour

* uni24D3.ss01 has a counter-clockwise outer contour

* uni24D4 (U+24D4) has a counter-clockwise outer contour

* uni24D4.ss01 has a counter-clockwise outer contour

* uni24D5 (U+24D5) has a counter-clockwise outer contour

* uni24D5.ss01 has a counter-clockwise outer contour

* uni24D6 (U+24D6) has a counter-clockwise outer contour

* uni24D6.ss01 has a counter-clockwise outer contour

* uni24D7 (U+24D7) has a counter-clockwise outer contour

* uni24D7.ss01 has a counter-clockwise outer contour

* uni24D8 (U+24D8) has a counter-clockwise outer contour

* uni24D8.ss01 has a counter-clockwise outer contour

* uni24D9 (U+24D9) has a counter-clockwise outer contour

* uni24D9.ss01 has a counter-clockwise outer contour

* uni24DA (U+24DA) has a counter-clockwise outer contour

* uni24DA.ss01 has a counter-clockwise outer contour

* uni24DB (U+24DB) has a counter-clockwise outer contour

* uni24DB.ss01 has a counter-clockwise outer contour

* uni24DC (U+24DC) has a counter-clockwise outer contour

* uni24DC.ss01 has a counter-clockwise outer contour

* uni24DD (U+24DD) has a counter-clockwise outer contour

* uni24DD.ss01 has a counter-clockwise outer contour

* uni24DE (U+24DE) has a counter-clockwise outer contour

* uni24DE.ss01 has a counter-clockwise outer contour

* uni24DF (U+24DF) has a counter-clockwise outer contour

* uni24DF.ss01 has a counter-clockwise outer contour

* uni24E0 (U+24E0) has a counter-clockwise outer contour

* uni24E0.ss01 has a counter-clockwise outer contour

* uni24E1 (U+24E1) has a counter-clockwise outer contour

* uni24E1.ss01 has a counter-clockwise outer contour

* uni24E2 (U+24E2) has a counter-clockwise outer contour

* uni24E2.ss01 has a counter-clockwise outer contour

* uni24E3 (U+24E3) has a counter-clockwise outer contour

* uni24E3.ss01 has a counter-clockwise outer contour

* uni24E4 (U+24E4) has a counter-clockwise outer contour

* uni24E4.ss01 has a counter-clockwise outer contour

* uni24E5 (U+24E5) has a counter-clockwise outer contour

* uni24E5.ss01 has a counter-clockwise outer contour

* uni24E6 (U+24E6) has a counter-clockwise outer contour

* uni24E6.ss01 has a counter-clockwise outer contour

* uni24E7 (U+24E7) has a counter-clockwise outer contour

* uni24E7.ss01 has a counter-clockwise outer contour

* uni24E8 (U+24E8) has a counter-clockwise outer contour

* uni24E8.ss01 has a counter-clockwise outer contour

* uni24E9 (U+24E9) has a counter-clockwise outer contour

* uni24E9.ss01 has a counter-clockwise outer contour

* uni24EA (U+24EA) has a counter-clockwise outer contour

* uni24EA.ss01 has a counter-clockwise outer contour

* uni24FF (U+24FF) has a counter-clockwise outer contour

* uni24FF.ss01 has a counter-clockwise outer contour

* uni2740 (U+2740) has a counter-clockwise outer contour

* uni2776 (U+2776) has a counter-clockwise outer contour

* uni2776.ss01 has a counter-clockwise outer contour

* uni2777 (U+2777) has a counter-clockwise outer contour

* uni2777.ss01 has a counter-clockwise outer contour

* uni2778 (U+2778) has a counter-clockwise outer contour

* uni2778.ss01 has a counter-clockwise outer contour

* uni2779 (U+2779) has a counter-clockwise outer contour

* uni2779.ss01 has a counter-clockwise outer contour

* uni277A (U+277A) has a counter-clockwise outer contour

* uni277A.ss01 has a counter-clockwise outer contour

* uni277B (U+277B) has a counter-clockwise outer contour

* uni277B.ss01 has a counter-clockwise outer contour

* uni277C (U+277C) has a counter-clockwise outer contour

* uni277C.ss01 has a counter-clockwise outer contour

* uni277D (U+277D) has a counter-clockwise outer contour

* uni277D.ss01 has a counter-clockwise outer contour

* uni277E (U+277E) has a counter-clockwise outer contour

* uni277E.ss01 has a counter-clockwise outer contour

* uniFFFD (U+FFFD) has a counter-clockwise outer contour

* v.blackCircled has a counter-clockwise outer contour

* v.blackCircled.ss01 has a counter-clockwise outer contour

* w.blackCircled has a counter-clockwise outer contour

* w.blackCircled.ss01 has a counter-clockwise outer contour

* x.blackCircled has a counter-clockwise outer contour

* x.blackCircled.ss01 has a counter-clockwise outer contour

* y.blackCircled has a counter-clockwise outer contour

* y.blackCircled.ss01 has a counter-clockwise outer contour

* z.blackCircled has a counter-clockwise outer contour

* z.blackCircled.ss01 has a counter-clockwise outer contour
    [code: ccw-outer-contour]

Font File Checks

🔥🔥🔥⚠️⚠️⚠️⚠️⏩⏩⏩⏩⏩⏩⏩ℹ️ℹ️ℹ️ℹ️ℹ️ℹ️

Are there unwanted Apple tables?

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

Checking file is named canonically.

Check ID: <FontBakeryCheck:com.google.fonts/check/canonical_filename>
🔥 Libertine-Super[wght].ttf
  • 🔥 FAIL

    Expected "LibertineSup[wght].ttf. Got Libertine-Super[wght].ttf.

    [code: bad-filename]

Does the font contain less than 150 CJK characters?

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

Check font follows the Google Fonts CJK vertical metric schema

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

Check if the vertical metrics of a CJK family are similar to the same family hosted on Google Fonts.

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

Color layers should have a minimum brightness

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

Check font has the expected color font tables.

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

Put an empty glyph on GID 1 right after the .notdef glyph for COLRv0 fonts.

Check ID: <FontBakeryCheck:com.google.fonts/check/empty_glyph_on_gid1_for_colrv0>

EPAR table present in font?

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

Ensure files are not too large.

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

Copyright notices match canonical pattern in fonts

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

Familyname must be unique according to namecheck.fontdata.com

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

Check font names are correct

Check ID: <FontBakeryCheck:com.google.fonts/check/font_names>
🔥 Libertine-Super[wght].ttf
  • 🔥 FAIL

    Font names are incorrect:

    nameID current expected
    Family Name Libertine Sup Thin Libertine Sup Thin
    Subfamily Name Regular Regular
    Full Name Libertine Sup Thin Libertine Sup Thin
    Postscript Name LibertineSup-VF LibertineSup-Thin
    Typographic Family Name Libertine Sup Libertine Sup
    Typographic Subfamily Name Thin Thin
    [code: bad-names]

Checking OS/2 fsType does not impose restrictions.

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

Check variable font instances

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

All name entries referenced by fvar instances exist on the name table?

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

Is the Grid-fitting and Scan-conversion Procedure ('gasp') table set to optimize rendering?

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

Validate defaults on fvar table match registered fallback names in GFAxisRegistry.

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

Check glyphs do not have components which are themselves components.

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

Check Google Fonts glyph coverage.

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

Font has ttfautohint params?

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

Show hinting filesize impact.

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

PPEM must be an integer on hinted fonts.

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

Is there kerning info for non-ligated sequences?

Check ID: <FontBakeryCheck:com.google.fonts/check/kerning_for_non_ligated_sequences>
⚠️ Libertine-Super[wght].ttf
  • ⚠️ WARN

    GPOS table lacks kerning info for the following non-ligated sequences:

    - f + f

- f + i

- f + l
    [code: lacks-kern-info]

Are there caret positions declared for every ligature?

Check ID: <FontBakeryCheck:com.google.fonts/check/ligature_carets>
⚠️ Libertine-Super[wght].ttf
  • ⚠️ WARN

    This font lacks caret positioning values for these ligature glyphs: - f_f - f_i

    [code: incomplete-caret-pos-data]

Ensure variable fonts include an avar table.

Check ID: <FontBakeryCheck:com.google.fonts/check/mandatory_avar_table>
⚠️ Libertine-Super[wght].ttf
  • ⚠️ WARN

    This variable font does not have an avar table.

    [code: missing-avar]

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

Check ID: <FontBakeryCheck:com.google.fonts/check/meta/script_lang_tags>
⚠️ Libertine-Super[wght].ttf
  • ⚠️ WARN

    This font file does not have a 'meta' table.

    [code: lacks-meta-table]

Check small caps glyphs are available.

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

Are there non-ASCII characters in ASCII-only NAME table entries?

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

Description strings in the name table must not exceed 200 characters.

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

Make sure family name does not begin with a digit.

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

Font has all mandatory 'name' table entries?

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

Version format is correct in 'name' table?

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

Ensure fonts do not contain any pre-production tables.

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

Font has old ttfautohint applied?

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

OS/2.fsSelection bit 7 (USE_TYPO_METRICS) is set in all fonts.

Check ID: <FontBakeryCheck:com.google.fonts/check/os2/use_typo_metrics>

Check font can render its own name.

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

Checking direction of slnt axis angles

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

Font enables smart dropout control in "prep" table instructions?

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

Check axis ordering on the STAT table.

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

Validate STAT particle names and values match the fallback names in GFAxisRegistry.

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

Ensure Stylistic Sets have description.

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

Stricter unitsPerEm criteria for Google Fonts.

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

Check the OS/2 usWeightClass is appropriate for the font's best SubFamily name.

Check ID: <FontBakeryCheck:com.google.fonts/check/usweightclass>
🔥 Libertine-Super[wght].ttf
  • 🔥 FAIL

    Best SubFamily name is 'Thin'. Expected OS/2 usWeightClass is 100, got 400.

    [code: bad-value]

The variable font 'wght' (Weight) axis coordinate must be 700 on the 'Bold' instance.

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

Ensure that all variable font files have the same set of axes and axis ranges.

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

Ensure VFs with duplexed axes do not vary horizontal advance.

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

Check variable font instances don't have duplicate names

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

Check a static ttf can be generated from a variable font.

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

EXPERIMENTAL CHECK - Since 2024/Mar/27
Ensure the font's instances are in the correct order.

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

Check that variable fonts have an HVAR table.

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

Ensure VFs do not contain the ital axis.

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

Checking OS/2 achVendID.

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

Check font follows the Google Fonts vertical metric schema

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

Check if the vertical metrics of a family are similar to the same family hosted on Google Fonts.

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

There must not be VTT Talk sources in the font.

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