Alternate font

I like that we now have the ability to choose between more fonts and that a similar font will be used if the font is unavailable. 

What I wish is that I could specify the alternate font that would be used, because I do use the font as part of the style of my emails, and this way I could ensure that even if an alternate had to be used, it would still fit within that style. As it currently stands, it makes the email with the alternate font look pretty bad.