i want to set custom opacity for the overlay in the blocking mode. the issue i am facing is that when i set custom opacity i can only handle it in the open and closing situations using onSpringStart event. i can not manage the opacity animation when user drag the bottom sheet using gesture handlers. please help me out

 div[data-rsbs-backdrop] {
    opacity: 0.5;
    z-index: $bottom-sheet-overlay-z-index;
    pointer-events: visible;
  }