Spacing

A 4px grid with half-steps at the bottom, 15 steps in all, from --ox-spacing-0 (0px) to --ox-spacing-12 (48px). One scheme-independent value each: there's no dark-mode variant of a spacing token. Each bar below is drawn at width: var(--ox-spacing-*), so its length on screen is the token's real size, not a number in a table.