unreachable_glyphs

Check font contains no unreachable glyphs

unreachable_glyphs

• Applies to: TTF
• Fontspector can hotfix?: no
• Fontspector can fix sources?: no

Rationale

Glyphs are either accessible directly through Unicode codepoints or through substitution rules.

In Color Fonts, glyphs are also referenced by the COLR table. And mathematical fonts also reference glyphs via the MATH table.

Any glyphs not accessible by these means are redundant and serve only to increase the font's file size.

Proposal

• https://github.com/fonttools/fontbakery/issues/3160

Profiles

• universal (in section 'Universal Profile Checks')

• googlefonts (in section 'Universal Profile Checks')