Module search

Theme directory search paths and the font-registry builder that walks the active document’s font block.

Functions

• build_font_registry
  Build a live FontRegistry from the active document’s fonts block, loading each declared source from disk. Sources that fail to read or parse are skipped with a warning on stderr — the registry degrades gracefully so one missing TTF does not take down the rest of the family.
• search_paths
  Returns the ordered list of directories under which theme families are looked up, highest-priority first.