dots/usr/share/themes/Dracula/gtk-3.20/widgets/_menus.scss

/*********
 * Menus *
 *********/
menubar,
.menubar {
  background-color: $headerbar_color;
  color: $headerbar_fg_color;
  -GtkWidget-window-dragging: true;
  padding: 0px;
  box-shadow: inset 0 -1px transparentize(black, 0.9);

  > menuitem {
    min-height: 16px;
    padding: 4px 8px;

    &:hover { //Seems like it :hover even with keyboard focus
      box-shadow: inset 0 -3px $selected_bg_color;
    }

    &:disabled {
      color: $insensitive_fg_color;
      box-shadow: none;
    }
  }
}

menu,
.menu,
.context-menu {
  margin: 4px;
  padding: 2px 0px;
  background-color: $menu_color;
  border: 1px solid $borders_color; // adds borders in a non composited env
  font: initial;
  
  .csd & { border: none; }  // axes borders in a composited env

  &:backdrop { background-color: $backdrop_menu_color; }

  menuitem {
    min-height: 16px;
    min-width: 40px;
    padding: 4px 6px;
    text-shadow: none;

    &:hover {
      color: $selected_fg_color;
      background-color: $selected_bg_color;
    }

    &:disabled {
      color: $insensitive_fg_color;
      &:backdrop { color: $backdrop_insensitive_color; }
    }

    &:backdrop,
    &:backdrop:hover {
      color: $backdrop_fg_color;
      background-color: transparent;
    }

    // submenu indicators
    arrow {
      min-height: 16px;
      min-width: 16px;

      &:dir(ltr) {
        -gtk-icon-source: -gtk-icontheme('pan-end-symbolic');
        margin-left: 10px;
      }

      &:dir(rtl) {
        -gtk-icon-source:-gtk-icontheme('pan-end-symbolic-rtl');
        margin-right: 10px;
      }
    }

    // avoids labels color being overridden, see
    // https://bugzilla.gnome.org/show_bug.cgi?id=767058
    label { &:dir(rtl), &:dir(ltr) { color: inherit; }}
  }

  // overflow arrows
  > arrow {
    @include button(undecorated);

    min-height: 16px;
    min-width: 16px;
    padding: 4px;
    background-color: $menu_color;
    border-radius: 0;

    &.top {
      margin-top: -6px;
      border-bottom: 1px solid mix($fg_color, $base_color, 10%);
      -gtk-icon-source: -gtk-icontheme('pan-up-symbolic');
    }

    &.bottom {
      margin-bottom: -6px;
      border-top: 1px solid mix($fg_color, $base_color, 10%);
      -gtk-icon-source: -gtk-icontheme('pan-down-symbolic');
    }

    &:hover { background-color: mix($fg_color, $base_color, 10%); }

    &:backdrop { background-color: $backdrop_menu_color; }

    &:disabled {
      color: transparent;
      background-color: transparent;
      border-color: transparent ;
    }
  }
}

menuitem {
  accelerator { color: gtkalpha(currentColor,0.55); }

  check,
  radio {
    min-height: 16px;
    min-width: 16px;

    &:dir(ltr) { margin-right: 7px; }
    &:dir(rtl) { margin-left: 7px; }
  }
}