A fractional position strictly between two others (null: the start or the end). Strings compare
as text, so any number of inserts fit between two neighbours without renumbering the rest — the
ordering Figma uses (spec §8). A key never ends in the zero digit, so there is always room below.
A fractional position strictly between two others (null: the start or the end). Strings compare as text, so any number of inserts fit between two neighbours without renumbering the rest — the ordering Figma uses (spec §8). A key never ends in the zero digit, so there is always room below.