Add italics version for light, dimmed and dark theme. | Example | | --- | | <img width="347" alt="CleanShot 2021-09-16 at 20 39 10@2x" src="https://user-images.githubusercontent.com/29014463/133637590-1547760f-a97b-403d-b56e-09cdd7e9ce7e.png"> |