Glad to help.  The way I found it was by searching for symbols with "Font" in the name,
In[5]:= Names["*Font*"]
Out[5]= {"DefaultFont", "DefaultFontProperties", "Font", "FontColor", 
"FontFamily", "FontForm", "FontName", "FontOpacity", 
"FontPostScriptName", "FontProperties", "FontReencoding", "FontSize", 
"FontSlant", "FontSubstitutions", "FontTracking", "FontVariations", 
"FontWeight", "PrivateFontOptions", "$DefaultFont", "$FontFamilies"}
which is usually a good way of hunting for options