I am unclear why some things are in italics, some in bold, and some neither. It is not good design to have formatting that is clearly intending to convey something, but not have a key. Can someone explain what the system is, and then let's add a key to the table. Bondegezou (talk) 16:13, 30 May 2020 (UTC)Reply[reply]

I think the list was derived from the larger Template:Language families. Therefore, italics mean the family is extinct, while bold means the family contains >30 languages. Aside from a few missing bolds (which have since been corrected), the markings appear to be coherent and are in parallel with the other navbox. I've simply copied the below key from the other navbox and pasted it here. — Neutral0814 (talk) 09:01, 13 February 2021 (UTC)Reply[reply]