bug#64618: 29.0.92; Can't set Fira code font with italic type on Windows system

[Eli Zaretskii]

> From: Eason Huang <aqua0210@foxmail.com>
> Date: Fri, 14 Jul 2023 23:36:00 +0800
> 
> Currently I tried to use Fira Code font on Windows 10, but the italic
> font can not use on Emacs 29 and Emacs 30, it rolls back to regular
> font. This only happends on Windows platform. It works as expected on
> macOS.
> 
> Does anyone known how to make it works?
> 
> You can downlaod and install Fira Code from this link:
> 
> https://github.com/tonsky/FiraCode/releases/download/6.2/Fira_Code_v6.2.zip
> 
> steps to reproduce:
> 
> 1. Unzip the Fira_Code_v6.2.zip and install Fira Code fonts in ttf
> folder
> 
> 2. Start Emacs with `emacs -Q`
> 3. From the Menu, choose Options -> Set Default Font...
> 4. From the popup window, select Fira Code font with italic type
> Now you will see that the font of current buffer have been changed to
> Fira Code with Regular font type. It should be the italic font type.

The zip file whose URL you posted doesn't seem to include an italic
variant of Fir Code...