userstyles/source/tildes-baukula/_settings.scss

.settings-list {
  margin-left: 0;

  li {
    border: 1px solid $comment;
    background-color: $background;
    margin-bottom: 4px;
    padding: 0.4rem;
  }

  form[name='account-default-theme'] {
    margin: 8px 0;
  }
}