retrospring/app/assets/stylesheets/overrides/_dropdown.scss

.dropdown-menu {
  color: RGB(var(--body-text));
  background-color: var(--raised-bg);
  box-shadow: $box-shadow-lg;
  border: none;
}

.dropdown-item {
  color: RGB(var(--body-text));

  &.active, 
  &:active,
  &:active:hover {
    color: RGB(var(--primary-text));
    background-color: var(--primary);
  }

  &:hover {
    background-color: var(--raised-accent);
  }
}

.dropdown-divider {
  border-top: 1px solid var(--raised-accent);
}

.dropdown-toggle {
  -webkit-appearance: none;
}