Extreme kerning value
Audit code: kerning-extreme
Definition
A kerning pair exceeds half the smaller glyph's advance — almost certainly a decimal typo (e.g. -500 typed when -50 was meant). Check the value in the spacing pair editor.
How Patens surfaces this
The Patens audit module checks for kerning-extreme across five teaching surfaces: the edit-panel inline issue list, the
project-wide audit page, the release pre-flight check, the family hub,
and the home-page project tile. Every surface shows the same plain-English
explanation and links back to this page. This rule is detection-only — there's no automatic fix because the
correction is design-dependent (it requires a judgment call about the
glyph's intended shape or the font's intended behaviour). The audit
message links to the specific glyph or field that needs attention.
Run this check yourself
Patens runs every audit rule live as you draw — including this one.
The editor (in private alpha) shows kerning-extreme firing on real
glyphs, or check your own work from the CLI:
npx patens audit your-project.font.json