Changing the font to something other than Courier New

I just installed LightTable, and I’m trying to change the font. The FAQ shows how to change the font to Courier New, but I’d like to change it to something other than Courier New. Which fonts are supported by default? Is there a way to add a font that is not supported by default?
Thanks in advance. :nerd_face:

I don’t believe there are fonts available ATM.