When the trill interval accidental is set to show To the right, it appears that these accidentals share a baseline with the tr symbol and are all scaled the same. The result however is that a double sharp looks too small and misaligned, especially when seen in context like this. It can’t be moved or scaled individually in Engrave mode, or edited in the music symbol editor…
(Scriabin—Rêverie op. 24, viola part)