metamask-extension/ui/app/components/pages/settings/settings-tab/index.scss

.settings-tab {
  &__error {
    padding-bottom: 20px;
    text-align: center;
    color: $crimson;
  }

  &__advanced-link {
    color: $curious-blue;
    padding-left: 5px;
  }

  &__rpc-save-button {
    align-self: flex-end;
    padding: 5px;
    text-transform: uppercase;
    color: $dusty-gray;
    cursor: pointer;
    width: 25%;
    min-width: 80px;
    height: 33px;
  }

  &__button--red {
    border-color: lighten($monzo, 10%);
    color: $monzo;

    &:active {
      background: lighten($monzo, 55%);
      border-color: $monzo;
    }

    &:hover {
      border-color: $monzo;
    }
  }

  &__button--orange {
    border-color: lighten($ecstasy, 20%);
    color: $ecstasy;

    &:active {
      background: lighten($ecstasy, 40%);
      border-color: $ecstasy;
    }

    &:hover {
      border-color: $ecstasy;
    }
  }

  &__radio-buttons {
    display: flex;
    align-items: center;
  }

  &__radio-button {
    display: flex;
    align-items: center;

    &:not(:last-child) {
      margin-right: 16px;
    }
  }

  &__radio-label {
    padding-left: 4px;
  }
}