Default font is missing characters

Players can't fully enjoy the awesomeness of Minecraft, if they can't type characters in chat, without screwing the look of the chat with incorrect font look.
We love to use the default Minecraft font, but it does not support characters, such as:
ý, ě, š, č, ř, ž, ď, ť, ň, ů

It is a pain in the eyes to see them that often and I hate, that when we switch the language, it forces us to use the ugly small font.
When you find yourselves some time, please do us a favor.
Thank you.