.terminator-terminal-window .scrollbar.dragging:not(.slider),
.terminator-terminal-window .scrollbar:hover:not(.slider),
.terminator-terminal-window .scrollbar:not(.slider) {
  background-color: alpha(@dark_bg_color,0);
}

.terminator-terminal-window .scrollbar:hover:not(.slider) {
  background-color: alpha(@scrollbar_track_color, 0.4);
}