I've noticed that I can paste all kind of unicode characters into Visual Studio 2013 and they show up just fine. But if I try the same trick in Notepad++, using the same font, they don't show up. So Visual Studio must be supplementing the chosen font with additional characters from somewhere else. Where? Is it like CSS where there's a font family definition somewhere (can you change it?) or is this some weird special behavior where it just happens to have a bunch of unicode symbols on hand?
EDIT: Experimenting with it a bit more, the special characters in question seem to appear in windows notepad and a few other programs after all. It mainly seems that Notepad++ is having trouble with them, despite adjustments to encoding and font settings.