[KevinH]

There is no font size. They are all scalable fonts (otf, ttf, sfnt, woff, woff2). Only the CSS determines the size.

If you just mean file size, that s already provided in the Font tab. Just double-click on a Font file in Sigil's BookBrowser.

If you are referring to a possible extension of GetInfo that I proposed, then please re-read the post to see File Size is listed in the basics for all file types.