startbootstrap/_sass/_twitch.scss

#twitch-widget {
  text-decoration: none;
  font-size: 0.9rem;
  line-height: 1.2rem;
  color: fade-out($white, 0.25);
  .badge {
    background-color: fade-out($black, 0.5);
  }
  .bg-twitch {
    transition: background-color 0.15s ease;
  }
  &:hover {
    .bg-twitch {
      background-color: darken($twitch, 10%) !important;
    }
  }
}