dots/usr/share/themes/Dracula/gtk-4.0/apps/_caja.scss

.caja-notebook {

  .frame { border-width: 0 0 1px; }

  .entry {
      background: $bg_color;
      color: $fg_color;
      border-color: $borders_color;
      &:selected {
        background: $selected_bg_color;
        color: $selected_fg_color;
      }
  }
}



/**************
* Caja sidebar *
**************/

.caja-side-pane {

  .frame { border-width: 1px 0 0; }

  background: $headerbar_color;
  treeview.view,
  textview.view text,
  viewport.frame,
  widget .vertical {
    background: $headerbar_color;
    padding: 3px 2px;
    &:hover {
        background-color: transparentize($base_color, 0.4);
    }
    &:selected {
        color: $purple;
        background: $headerbar_color;
        &:hover {
            background-color: transparentize($selected_bg_color, 0.8);
        }
    }
  }
}

/**************
* Caja pathbar *
**************/

.caja-navigation-window paned {
  background: $base_color;
}

.caja-navigation-window .primary-toolbar {
  background: $headerbar_color;
  button {
      &, &:backdrop { @include button(normal-header); }
      &:hover,
      &:active,
      &:backdrop:active,
      &:backdrop:checked {
        background: $selected_bg_color;
        box-shadow: none;
        &, & label {
            color: $selected_fg_color;  
        }
      }
  }

}

.caja-pathbar button {
  &, &:backdrop { @include button(normal-header); }
  &:hover,
  &:active,
  &:checked,
  &:backdrop:active,
  &:backdrop:checked {
    background: transparent;
    box-shadow: none;
    &, & label {
        color: $purple;
    }
  }
}