control_chars

Does font file include unacceptable control character glyphs?

control_chars

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

Rationale

Use of some unacceptable control characters in the U+0000 - U+001F range can lead to rendering issues on some platforms.

Acceptable control characters are defined as .null (U+0000) and CR (U+000D) for this check.

Proposal

• https://github.com/fonttools/fontbakery/pull/2430

Profiles

• universal (in section 'Universal Profile Checks')

• googlefonts (in section 'Universal Profile Checks')