I guess it could show up with the \{X} escape notation in Notepad. But in theory almost no one would even notice that, the "natural form" would be to eliminate excessive escaping and just show what the string will actually be.

Why are we letting 50 year old technology constrain us? Why should we ever expect to edit code in a bare bones text editor? I'm not saying I like this particular idea but we shouldn't be held back by our technological history