"Reset to Default' buttons for all Style dialogs
Currently in Style →: General... only the dialog for "Hairpins, Volta, Ottava" has 'Reset to Default' buttons next to the input field.
All other dialogs in Style → General... should have these buttons too, I find it quite inconsistent that they don't, and they are/would be quite helpful when having screwed up a setting or two ;-).
Not sure why I noticed These buttons only now, as it has been the case in 2.0 ever since.
Also all these buttons should show disabled when the corresponding value set to the default already, similar to (most of) the reset buttons in Inspector, this is not the case for the ones currently available in that Dialog, they are always enabled.