NeedFontDocumentation
OpenType Features

Stylistic Sets

Grouped alternate designs for consistent style variations.

What Are Stylistic Sets?

Stylistic sets (ss01–ss20) group related alternate glyphs. Unlike stylistic alternates (salt) which work per-character, sets apply a consistent variation across the font.

Common Uses

ss01Alternate a, g (single-story vs double-story)
ss02Open/closed digit 4
ss03Rounded vs angular forms
ss04Alternate punctuation

CSS

font-feature-settings: "ss01" 1, "ss03" 1;