dgentry/Brogue-on-github — pull request #1 by joewreschnig (2012-09-05 09:31:52+00:00)
Title: Fix incorrect glyph selection by using a cascading font fallback (but renders very slowly)

This fixes the incorrect display by setting a fallback from Monaco to Arial Unicode MS rather than letting OS X fall back to Emoji on 10.8 for e.g. foliage. However, the result is too slow to be playable.

Unfortunately I can't find anything about *why* fallback lists make fonts so slow even when most of the characters requested are in the non-fallback fonts. The glyphs render slowly no matter what's in the fallback list, even if it's empty, so I don't think it's the fault of Arial Unicode MS per se.