Incorrect syntax highlighting in editor window

[DarrenCook]

Words with underline in the middle of them (e.g. filenames) are being half bold-ed. But only in the editor window, not in the preview window. I believe the preview window is correct, and you should only be making words bold if there is whitespace before the "_". (pandoc and the "Remarkable" editor behave the same way as your preview window, however RStudio behaves the same way as your editor window.)

BTW, I think a way to switch off syntax highlighting in the editor window might be useful: I don't mind it (when its correct!), but if I'm using a two-pane editor with live preview, it is not essential.