Well...
If this issue means to change something in circled-tip definition, I think that it would be nice to have a second type of dal niente/al niente.
If I remember correctly, circled-tip was hard-coded in C - away from my hacking capabilities.
Maybe it would be better to define it in scm files with path, so that one could use other styles of dal-niente/al-niente.
As an example, I prefer very much something like a slashed-circle (messy example, sorry):
%%code
slashflag = \markup{\combine \translate #'(-0.3 . -0.3) \draw-line #'(0.6 . 0.6)
\fontsize #-5 \musicglyph #"scripts.flageolet"}
nientedyn = #(make-dynamic-script slashflag)
\relative c' {
%\once \override Hairpin #'circled-tip = ##t
\once \override Hairpin #'stencil = #flared-hairpin
\once \override Hairpin #'bound-padding = #0
%\once \override Hairpin #'bound-details #'left #'padding = #0 %% <- this feature would be nice, just as in Glissandos...
g'2\nientedyn\< ~ g8\fff
}
%%end of code
