Last week a client told me that it uses the typeface Segoe UI (pronounced SEE-go) for its contracts. I wasn’t familiar with it, so I checked it out. Go here for the Wikipedia page for it. And the image below shows it alongside Calibri. Segoe UI is a system font, so it’s safe to use—it won’t default to some other font on someone else’s computer. Matthew Butterick rates it, and Calibri, “OK in limited doses.” I declare Segoe UI unobjectionable.