There are three extended chars in Swedish (äöå) and Norwegian/Danish (æøå), but your fonts have æ, but not ø, which means you could drop the æ and still support Swedish, or add an ø to also support Norwegian and Danish. Was this an oversight or is there some locale that has just æ and not ø? (and before anyone asks I did not confuse æ with the oe-ligature œ, which is a different glyph used in French, and which the fonts also do support)