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I was wondering why the MonoFur example was in italics, then I tried it out in Sublime - for some reason it uses the Italic version as if it is the regular version, and I haven't found a way of fixing that. Does anyone have any suggestions?
You could try uninstalling the italic version of the font.
Still, I wonder if the bug is with Sublime or the font (since other fonts don't seem to have this problem).