Hi Doru,
Yes, you're completely correct.
The GUI itself accepts diacritics.
However, when we output swf we're relying on an external library, and this part that isn't working well for you.
I need to look into this, find out why it's happening, and fix the problem.
It could be many things. It may be a problem with the way Salasaga is communicating with the external library, or it may be a problem with the external library itself and the font we're embedding. Not sure yet.
Either way, in a few weeks this will be fixed, and you'll be able to output diacritics properly.

Does that work for you?