Regarding "demand for other fractions", if you look at the current rendering of the stars on Blood River (your example): https://www.goodreads.com/book/show/21

Regarding "demand for other fractions", if you look at the current rendering of the stars on Blood River (your example): https://www.goodreads.com/book/show/2184798.Blood_River https://www.goodreads.com/book/show/2184798.Blood_River It actually renders a much smaller sliver of a star than a half, at least for me: https://i.imgur.com/QTBT7Ls.jpg https://i.imgur.com/QTBT7Ls.jpg Not saying that needs to be implemented at the Unicode level, just saying there is evidence of use of other fractions.