DefinitionStyleFunc typedef
Callback for styling definition list items.
term is the term being rendered.
description is the description being rendered.
index is the index of the item (0-based).
isTerm indicates whether this is the term (true) or description (false).
Return a Style to apply, or null for no styling.
Implementation
typedef DefinitionStyleFunc =
Style? Function(String term, String description, int index, bool isTerm);