accidental on trills too small for performers to read
More or less the title, really.
I went ahead and printed out a part from the Dvorak score I had been working on, and the accidentals on trills are very small. I would suggest that we make them regular size - not smaller than normal accidentals - and put them in front of the trill, not on top. This notation has been used by highly regarded publishers like Barenreiter.
Correct notation doesn't mean much of the performers have trouble seeing it.
Not sure if the type here is supposed to be performance. It's certainly not user interface or experience.