How do I configure VS Code to support italic styles, like in this picture?

My current settings:
I know this is somewhat an old question but I found myself on this thread when I was trying to set up operator mono on my Windows machine and had to spend sometime on it to make it work but if anyone else is looking for this it turns out it's as simple as the following on VS Code:
"workbench.colorTheme": "Operator Mono Dark Theme",
"editor.fontFamily": "Operator Mono Light"
and that should do it.