All strings in wxEuphoria are Unicode.
It uses wide characters (which are basically 4-byte integers) to create wxStrings.
If your application only uses ASCII characters, you probably won't even notice a difference.
If you use Unicode characters, they should be stored as an integer (or atom) in a sequence,
using the normal U+xxxx values.
Note that you may need to switch fonts (especially under windows) in order to see all of
the glyphs, as not all fonts have all glyphs.