Fine-tuning pedal brackets

The appearance of pedal brackets may be altered in different ways.

\version "2.24"

\paper {
  ragged-right = ##f
}

\relative c'' {
  c2\sostenutoOn c
  c2\sostenutoOff c
  c2\tweak shorten-pair #'(-7 . -2) \sostenutoOn c
  c2\sostenutoOff c
  c2\tweak edge-height #'(0 . 3) \sostenutoOn c
  c2\sostenutoOff c
}