Comment 6 for bug 955346

If we used Unicode stars we would lose the ability to round the rating to the nearest half star, because Unicode doesn't have a half-star character.

I see two ways to make the current stars clearer: reduce the thickness of the outline, and draw unfilled stars (and the unfilled part of half-stars) in a faint grey rather than yellow. Either would help; I think both would be ideal.

The review submission dialog stars should be drawn differently anyway, to fix bug 770963.