This is my font data (MSW)
<FONT>
<str>
<![CDATA[1;10.2;-17;0;0;0;400;0;0;0;0;3;2;1;49;Fira Code]]>
</str>
</FONT>
The string is generated with this code called from wxFont::GetNativeFontInfoDesc()
s.Printf(wxT("%d;%s;%d;%d;%d;%d;%d;%s;%d"),
1, // version
wxString::FromCDouble(GetFractionalPointSize()),
family,
(int)style,
weight,
underlined,
strikethrough,
faceName.GetData(),
(int)encoding);