Why don't Italic versions show up under PS?

[Strykar]

In Kitty terminal, I cannot set Fira Code as the italic_font and bold_italic_font since there appears to be no PostScript version available:

$ kitty + list-fonts --psnames | grep "Fira Code"
Fira Code
    Fira Code Bold (FiraCode-Bold)
    Fira Code Light (FiraCode-Light)
    Fira Code Medium (FiraCode-Medium)
    Fira Code Regular (FiraCode-Regular)
    Fira Code Retina (FiraCode-Retina)
    Fira Code SemiBold (FiraCode-SemiBold)

What am I missing here?

[tonsky]

There are no italic versions of Fira Code

[Strykar]

Thank you :(