OptionalbuttonOptionalclassOptionaldisabledOptionaldisabledWhy the button is off, shown on hover while disabled. Ignored otherwise.
OptionaliconOptionalkeyboardOptionalkindOptionalnameOptionalonCalled when the button is clicked. If not set, the button will submit the form (if any).
Handed the event, which the button already forwarded before this said so: some handlers read
the press's own target to know where to act — opening a note in the tab the button stands in,
for one (see openInCurrentNoteContext).
OptionalsizeOptionalstyleOptionaltitleOptionaltrigger
Reference to the button element. Mostly useful for requesting focus.