to correct the locale used by font,

("zh" for Chinese) -> ("zh_tw" for Traditional Chinese)

docs/html/OPTIONS.html

@@ -1114,7 +1114,7 @@ New Breed Software</p>
     "<code><b>locale</b></code>" subdirectory).  The name of the file
     corresponds to the first two letters in the 'locale' code of the
     language (e.g., "ko" for Korean, "ja" for Japanese,
-    "zh" for Chinese).<p>
+    "zh_tw" for Traditional Chinese).<p>
     
     For example, under Linux or Unix, when Tux&nbsp;Paint is run in Korean
     (e.g., with the option "<code>--lang&nbsp;korean</code>"),