The current font drop down had a few small annoyances in it, it previews the font by rendering the font’s name in that font itself, but assumes that the same point size in any given font will have the same baseline and height as the default UI font, which leads to misplaced entries and cut-off text, e.g.
Additionally the extra preview text is right aligned (also checked in for 3.4). For extra cunning (to be checked in today) when the font is tuned for rendering a specific script e.g. Arabic or Telugu, then some sample glyphs from that script are shown as extra preview text, seeing as its not massively useful to get an Latin script preview of the fontname which the massive likelihood is that its not really intended for use for that script, effectively guaranteed in the case that it doesn’t even have sufficient glyphs in it to render its own name. In most cases the string for each script is hopefully that scripts major language’s translation/equivalent to “Alphabet” or some such.